I know I missed the deadline, but I wanted to share with you the idea I had to this Challenge # 10... When I saw Liza had posted this challenge, the first thing that came to my mind was Jo's description for Bob Ogden (the wizard who who worked in the Department of Magical Law Enforcement and once visited the Gaunt shack).
If Bob Ogden had a clothes store for wizards and witches who wanted to disguise their appearance with Muggles' clothes, I think that these outfits could be in the front window:

man outfit: striped t-shirt, golden tie, blue gymnastic pants and a fantastic shiny green blazer.

woman outfit: blue gymnastic jumpsuit and a green winter coat.


Okay, I have to admit that these ones came from my own (and hubbie's) wardrobe... The blazer IS a costume.