You can't very well toss the disk around or play a game of Ultimate Frisbee without a Frisbee, can you?
Check out these Ultra Star Discs - they're The Official Disc of the Ultimate Players Association and the choice of teams worldwide. These have been the leading Frisbee sold and used since Ultimate Frisbee was introduced in 1981 (that's pretty impressive).
So what I'm saying is that these are state-of-the-art, top-notch Frisbees we're talking about here. Not only that, but they only cost $7.95. They come in black, red, white, or yellow.
Buy one from UltimateFrisbees.com.