You are only limited by your imagination.
This is your project and though you've seen a similar project, you want to make something unique that reflects your style and personality. Ideas to brainstorm:
1) A mosaic of cards turned at various reading angles (make sure and make a legend of who's signature is where)
2) Themed collage, keep western stars together, sci-fi stars together, sports stars together and so on
3) If all I had was signed cards with no pictures. I might consider making plaques with an 8x10 on top of the signed card on top of trophy sized nameplate
4) A scrap book with all of these cards in it like a collectible rolodex

the sky is the limit

Need some advice from some of you experienced collectors out there. After seeing an episode of Pawn Stars where a museum curator had done TTM autographs for years and then sewn them together for a quilt I decided that was neat and want to do something similar. Basically I print out 3.5" by 2" blank business cards with the name of the person and what they are known for on them. The cards are made out of thick photo paper with no perforations. I got them because you can piece them back together seamlessly.

In any event what I want to do is as I get some back, piece them together in a frame to create sort of a large poster of autographs. Now here's where some advice would come in handy. What material do you think would be best to mount the autographs together on inside the frame and what should I use to mount the cards themselves. Id like to actually put the cards side by side like a jigsaw puzzle so im not sure if mylar corners would allow me to do that without significant space in between. I have Scotch clear mounting squares but they do not say acid free. There's also the possibility of wanting to make the frame/display bigger as the autograph collection grows.

Just looking for any input as many of you are quite experienced at this sort of thing