Get a piece of poster board. Stick photos to poster board using double sided tape. Take the poster board with photos already on it to a frame shop and have them frame it.

So Im making this heart collage on my wall. And I want to be able to keep it so I thought 'Why not frame it?'

Heart collage (not mine): http://static.lockerz.com/decalz/W600/image00135799762054443pj51.jpeg

so imagine a frame.. bordering that.. How is that possible? Can I like.. Glue/tape the back of the pictures on the glass or something? Does it make sense. I'm very confused on how to do it, but I know it's possible.