This was brought up on the general discussion forum, but I thought it was a good idea and would probably get some more attention here. A lot of players seem to want a costume system, and I think that putting it in as part of the crafting system would work out great.
Here's how I'd go about implementing it:
-Whenever a racial motif is used to learn how to craft that style of armor, add the additional effect of having that motif unlock the ability to craft costumes in that armor's style.
-The blacksmithing and clothing crafting stations would receive a new tab in their interface, labelled "costumes", where you would be shown all of the costumes you're able to create. For example, a khajiit character would start out with being able to make a khajiit costume (heavy armor at blacksmithing station, or medium and light at clothing station), but could use a breton racial motif to add the breton costumes to these windows.
-Costumes would require a percentage of the materials you'd normally have to spend in order to create a set of armor of that type, and the quality of materials would determine the level of model used in the cosume. For example, a level 1 khajiit heavy armor costume would require something like 21 iron ingots and 7 moonstone, and would display the same visual when equipped as the level 1-14 crafted khajiit armor. If you wanted to go with the next visual upgrade (level 16-24 crafted khajiit armor), you'd have to spend 21 steel ingots and 7 moonstone. Thinking 3 resources and 1 stone per armor slot available on a character would be a good balance here.
-This gives you a total of 4 costumes (at the moment) for each armor type for each race, or a total of roughly 150~ different craftable costumes in the game (14 racial motifs, 4 levels of visuals for each, and 3 armor types for each).
-Costumes would add something new that crafters could sell to other players for profit, particularly players that would rather use dropped loot and sets but want to maintain a themed appearance.
-Costumes would be equipped in the disguise slot of the character inventory screen.
PS4 / NA
M'asad - Khajiit Nightblade - Healer
Pakhet - Khajiit Dragonknight - Tank
Raksha - Khajiit Sorcerer - Stamina DPS
Bastet - Khajiit Templar - Healer
Leonin - Khajiit Warden - Tank