craftgrrl | Wall hangings and such...

Do any of you lovely people know how to hang something without damaging it (nails, tacks, tape) or framing it?

I've got tons of crap I plan on hanging in my bedroom once it's painted, but I don't want to damage any of it, nor do I really want to frame it or use a bulletien board (it'd end up looking waaaaay over cluttered). Any ideas?

Peeh Ehs: I already tried sticking a sample chunk of magazine to my wall with polymer clay... It worked well for about a day until it left little grease spots on my page...