I found 4 plants outside the Singing Shards in Davon's Watch - if your character was the right size and positioned correctly they could look like armor maybe.....
I like the floating chest that appear after a Dolmen is beaten down.
TBH I wish that was actualy a feauture and not a bug, would make it look like more out of this world, like the interdimensional portal held by giant chains we have to destroy on a daily basis.