Memory game to piece of art

Here's my idea: Take the 30-some pieces of the Charley Harper Memory Game and create a piece of art for my white wall. I'm thinking about gluing the pieces onto cardboard I get from cutting up one of my moving boxes. The pieces will cover the cardboard, so none of the box will show. Then use decoupage glue to cover the whole thing. All I'll need to do after that is find a great frame at either a garage sale or antique store. What do you think?

This is the memory game: