Necklaces! Don't forget about them. Easy to wear, cheap at flea markets, colourful and fun, plus they make an interesting display in an otherwise boring bathroom.
Don't stress about matching them to an outfit, just throw on any old one and people will think you planned it like that.
You can even make one out of a bit of old hardwear lying around and a silk cord - see above, longest one. Ohh, arty!