Canceled Postage Stamps

[coexist-love.livejournal.com]

Hey guys...

I was cleaned out today and found a stash of cancelled postage stamps from different countries. Does anyone have any idea what I can do with them? The stamps very in size from rectangular to very small and I was considering using them as element so a collage but I was wondering if anyone else had any different ideas.

Any help would be much appreciated.