At last, here is my pattern for a tapestry football mat. I know football season is almost over, but you might still have time to make one. And if it's too late, you can always make it for the next season.
Tapestry crochet is actually quite easy. The only thing that might complicate things is the idea of working with more than one color yarn. However, once you do a few rows of that, it actually becomes very easy.