From Moon-Reacher on Tumblr:

86* new furnishing plans
Sources:

66 can be found across the Solstice zone.
13 can be found in Solstice’s Antiquity bonus loot when excavating antiquities of intermediate or higher difficulty.
6 can be found in Algae-Laden Sunport Packs which can be fished up in Solstice.
1 can be earned from defeating the Wine Sommelier in the delve Vale of Revelry.
*According to the given list and player findings, 6 are missing. Currently we do not know what the 6 missing are.

Items:

Pattern: Worm Cult Bed, Canopy Full
Pattern: Worm Cult Bed, Full
Pattern: Worm Cult Bed, Single
Diagram: Worm Cult Buffet
Diagram: Worm Cult Nightstand, Drawer
Diagram: Worm Cult Decor, Crystal Skeleton
Diagram: Worm Cult Decor, Skeleton
Blueprint: Worm Cult Table, Wooden
Diagram: Worm Cult Bookcase, Filled
Diagram: Worm Cult Bookcase, Wide Filled
Diagram: Worm Cult Trunk, Large
Diagram: Worm Cult Dresser, Short
Diagram: Worm Cult Divider, Iron
Blueprint: Worm Cult Divider, Wooden
Diagram: Worm Cult Trunk, Medium
Blueprint: Worm Cult Bookcase, Wooden Filled
Blueprint: Worm Cult Chest, Skull
Diagram: Worm Cult Table, Grand
Diagram: Worm Cult Table, Small
Formula: Worm Cult Mirror, Metal
Diagram: Worm Cult Shelf, Leather
Pattern: Worm Cult Rug, Red
Pattern: Worm Cult Rug, Triangular Sigil
Pattern: Worm Cult Rug, Large Teal
Diagram: Worm Cult Chest, Small
Diagram: Worm Cult Brazier, Cold-Flame
Diagram: Worm Cult Chandelier, Caged Cold-Flame
Diagram: Worm Cult Chandlier, Bone Cold-Flame
Diagram: Worm Cult Lamp, Floor Cold-Flame
Design: Worm Cult Candelabra, Cold-Flame
Formula: Worm Cult Lamp, Table Cold-Flame
Diagram: Worm Cult Lamp, Jaw
Diagram: Worm Cult Sconce, Caged Cold-Flame
Diagram: Worm Cult Lightpost, Caged Cold-Flame
Diagram: Worm Cult Sconce, Jaw
Diagram: Worm Cult Sconce, Cold-Flame Torch
Pattern: Battlefield Marker, Flag Spear
Diagram: Worm Cult Lever, Metal Gate
Diagram: Worm Cult Crane, Mining
Blueprint: Worm Cult Mill, Grinding
Blueprint: Worm Cult Barrel, Closed
Pattern: Worm Cult Bench, Padded
Pattern: Worm Cult Bench, Padded Backed
Pattern: Worm Cult Chair, Padded
Pattern: Worm Cult Stool, Round
Blueprint: Worm Cult Bench, Wooden
Pattern: Worm Cult Chair, Padded Double-Backed
Blueprint: Worm Cult Chair, Wooden
Blueprint: Worm Cult Stool, Wooden
Pattern: Worm Cult Book Stack, Trio
Pattern: Worm Cult Books, Row
Pattern: Worm Cult Books, Long Row
Pattern: Worm Cult Papers, Scattered
Pattern: Worm Cult Stool, Padded
Formula: Worm Cult Brew, Bubbling
Formula: Worm Cult Specimen Jar, Brain
Formula: Worm Cult Apparatus, Condenser
Pattern: Worm Cult Scroll, Unfinished
Diagram: Worm Cult Specimen, Skull
Formula: Worm Cult Specimen Jar, Spider
Blueprint: Tide-Born Tool Rack, Fishing
Design: Tide-Born Drying Rack, Fish
Blueprint: Tide-Born Trap, Fish
Design: Tide-Born Ornament, Painted Coral
Blueprint: Stone-Nest Seed Doll, Fish
Blueprint: Stone-Nest Seed Doll, Frog
Pattern: Stone-Nest Bed, Stone
Pattern: Stone-Nest Chair, Carved Stone
Praxis: Stone-Nest Armchair, Carved Stone
Praxis: Stone-Nest Table, Carved Stone
Praxis: Stone-Nest Sculpture, Xanmeer Idol Head
Pattern: Stone-Nest Basket, Woven Round
Praxis: Argonian Tablet, Vos-Toh of Dance
Praxis: Argonian Tablet, Vos-Toh of Song
Praxis: Argonian Tablet, Vos-Toh of Death
Praxis: Stone-Nest Decor, Bismuth Carved Stone
Praxis: Stone-Nest Sconce, Xanmeer Snake
Praxis: Stone-Nest Sconce, Xanmeer
Praxis: Stone-Nest Brazier, Carved Stone
Blueprint: Wine Glass Harp, Sanguine

Here's that list, with the blueprint: bit filtered out from the front of their names, with their categories and in alphabetical order. More useful for spreadsheets. Sheets should sort them into their columns with a simple copy/paste.

Argonian Tablet, Vos-Toh of Dance Praxis Enchanting
Argonian Tablet, Vos-Toh of Death Praxis Enchanting
Argonian Tablet, Vos-Toh of Song Praxis Enchanting
Battlefield Marker, Flag Spear Pattern Clothing
Stone-Nest Armchair, Carved Stone Praxis Enchanting
Stone-Nest Basket, Woven Round Pattern Clothing
Stone-Nest Bed, Stone Pattern Clothing
Stone-Nest Brazier, Carved Stone Praxis Enchanting
Stone-Nest Chair, Carved Stone Pattern Clothing
Stone-Nest Decor, Bismuth Carved Stone Praxis Enchanting
Stone-Nest Sconce, Xanmeer Praxis Enchanting
Stone-Nest Sconce, Xanmeer Snake Praxis Enchanting
Stone-Nest Sculpture, Xanmeer Idol Head Praxis Enchanting
Stone-Nest Seed Doll, Fish Blueprint Woodworking
Stone-Nest Seed Doll, Frog Blueprint Woodworking
Stone-Nest Table, Carved Stone Praxis Enchanting
Tide-Born Drying Rack, Fish Design Provisioning
Tide-Born Ornament, Painted Coral Design Provisioning
Tide-Born Tool Rack, Fishing Blueprint Woodworking
Tide-Born Trap, Fish Blueprint Woodworking
Wine Glass Harp, Sanguine Blueprint Woodworking
Worm Cult Apparatus, Condenser Formula Alchemy
Worm Cult Barrel, Closed Blueprint Woodworking
Worm Cult Bed, Canopy Full Pattern Clothing
Worm Cult Bed, Full Pattern Clothing
Worm Cult Bed, Single Pattern Clothing
Worm Cult Bench, Padded Pattern Clothing
Worm Cult Bench, Padded Backed Pattern Clothing
Worm Cult Bench, Wooden Blueprint Woodworking
Worm Cult Book Stack, Trio Pattern Clothing
Worm Cult Bookcase, Filled Diagram Blacksmithing
Worm Cult Bookcase, Wide Filled Diagram Blacksmithing
Worm Cult Bookcase, Wooden Filled Blueprint Woodworking
Worm Cult Books, Long Row Pattern Clothing
Worm Cult Books, Row Pattern Clothing
Worm Cult Brazier, Cold-Flame Diagram Blacksmithing
Worm Cult Brew, Bubbling Formula Alchemy
Worm Cult Buffet Diagram Blacksmithing
Worm Cult Candelabra, Cold-Flame Design Provisioning
Worm Cult Chair, Padded Pattern Clothing
Worm Cult Chair, Padded Double-Backed Pattern Clothing
Worm Cult Chair, Wooden Blueprint Woodworking
Worm Cult Chandelier, Caged Cold-Flame Diagram Blacksmithing
Worm Cult Chandlier, Bone Cold-Flame Diagram Blacksmithing
Worm Cult Chest, Skull Blueprint Woodworking
Worm Cult Chest, Small Diagram Blacksmithing
Worm Cult Crane, Mining Diagram Blacksmithing
Worm Cult Decor, Crystal Skeleton Diagram Blacksmithing
Worm Cult Decor, Skeleton Diagram Blacksmithing
Worm Cult Divider, Iron Diagram Blacksmithing
Worm Cult Divider, Wooden Blueprint Woodworking
Worm Cult Dresser, Short Diagram Blacksmithing
Worm Cult Lamp, Floor Cold-Flame Diagram Blacksmithing
Worm Cult Lamp, Jaw Diagram Blacksmithing
Worm Cult Lamp, Table Cold-Flame Formula Alchemy
Worm Cult Lever, Metal Gate Diagram Blacksmithing
Worm Cult Lightpost, Caged Cold-Flame Diagram Blacksmithing
Worm Cult Mill, Grinding Blueprint Woodworking
Worm Cult Mirror, Metal Formula Alchemy
Worm Cult Nightstand, Drawer Diagram Blacksmithing
Worm Cult Papers, Scattered Pattern Clothing
Worm Cult Rug, Large Teal Pattern Clothing
Worm Cult Rug, Red Pattern Clothing
Worm Cult Rug, Triangular Sigil Pattern Clothing
Worm Cult Sconce, Caged Cold-Flame Diagram Blacksmithing
Worm Cult Sconce, Cold-Flame Torch Diagram Blacksmithing
Worm Cult Sconce, Jaw Diagram Blacksmithing
Worm Cult Scroll, Unfinished Pattern Clothing
Worm Cult Shelf, Leather Diagram Blacksmithing
Worm Cult Specimen Jar, Brain Formula Alchemy
Worm Cult Specimen Jar, Spider Formula Alchemy
Worm Cult Specimen, Skull Diagram Blacksmithing
Worm Cult Stool, Padded Pattern Clothing
Worm Cult Stool, Round Pattern Clothing
Worm Cult Stool, Wooden Blueprint Woodworking
Worm Cult Table, Grand Diagram Blacksmithing
Worm Cult Table, Small Diagram Blacksmithing
Worm Cult Table, Wooden Blueprint Woodworking
Worm Cult Trunk, Large Diagram Blacksmithing
Worm Cult Trunk, Medium Diagram Blacksmithing

(ETA:)
done with:
=right(A1,LEN(A1)-FIND(":",A1))
=RIGHT(B1, LEN(B1)-1)
(/ETA)