So since I love cards and all that, I made a "NERDFIGHTER" out of cards. Actually, that sounds misleading; it would be rather difficult to make an actual Nerdfighter out of cards, but I'm sure it could be done. The cards used here are Tally Ho blue fan backs.
I was also thinking of making a "DFTBA" out of cards, with each card used having a back design different from all the other cards. I determined that it would take about 24-25 cards minimum to make the letters, and I'm pretty sure I have enough back designs to do that (what you may not understand is that I have a LOT of cards XD)