Stick Velcro

what material will velcro stick to?

I want to put a bunch of velcro (the hooks side) on the backs of some of my polaroid pictures and stick them to a a really huge sheet of some material on my wall so that you can take the pictures down to look at but most of the time they will be stuck on the sheet. I was thinking a large sheet of felt would do the trick, but I was also thinking there may be a better alternative.

Felt, fleece or any knit material is fine. To make it firm, you could staple it to a big piece of cardboard.
.

(more...)