As the title says this has been quite thought about by myself, and through short discussions people do think it is quite interesting to see if it could be applied.

Approach

Me personally I dont wanna see slop outfits of multiple accessories of the same type (wings, glasses, halos) but things that i think work together such as

Dapper combo + Glasses
Devious horns + Halos/crowns
Aura + Aura

Seeing something like this would not only increase demand for accessories, but also continue innovation of characters.

On a second note, I would like the option to remove the gem from the gem auras (This does not have to be considered though i do not like it at all personally).