These were a pain in the butt, but they were definitely worth the attention I got when I wrapped them around the knocker on my door:
Crochet Dice by ~audreydc1983 on deviantART
These dice are 3"cubes, a bit bigger than normal "fuzzy dice". I just made 6 3" square panels, and sewed them together. I put in a panel of thin cardboard on each side for stability (they were about 2 3/4" square, and adding just enough stuffing to keep them in place.
After I sewed them up, using a die for reference, I hot glued the felt spots on.
They came out really good - but too big for wrapping around the rear-view mirror. Perhaps I'll just wrap them around my neck when I go to Vegas!