I've been thinking, and I've come up with four ideas that would be awesome for HAs. If possible, that is.
Idea 1) Active pet with you.
This idea is the idea of having your active pet visible on the HA. You know, standing behind you and such. I think it would look quite cool. Don't you?
EDIT: Tutus. or even skirts. I just realized that females have no skirts at all. TuTus would be awesome, but...:D
Idea 2) Wearable squishies.
This idea is that you can 'wear' squishies. Hold them, have them on your head, have them at your feet, etc. Of course, the squishies can be removed and placed back into your inventory.
Idea 3) Exotic hair colors.
I don't know if this idea will already be in action, but exotic hair colors would be epic. Pink, purple, blue, etc. Not normal hair colors. If they aren't programmed by default, then maybe an item to change it? Like hair dyes of something?
Idea 4) Morphing Potions change you.
This is probably going to be the least accepted idea, I'm sure. But this is the idea where if you 'wear' a morphing potion, you become a natural of that color. Seeing as Morphing Potions are a bit rarer nowadays, this'd be a cool feature. Or maybe, instead of being a natural Gondra, to say, it would depend on your regular HA hair color.
These are just suggestions and ideas. So don't bite my head off.