Have you heard about using your Cricut cartridges to make freezer paper stencil patterns? I have come across a couple of blogs and message forum posts about this, and finally, I decided to give it a try.
First, I have to brag a little. My sixth grader played football this year, and his team actually made it to the final championship game! They didn't win, but the fact that they made it as far as they did inspired me to pull out the freezer paper and make t-shirts to wear the game. Anyway, here's a picture of the tees I made with my Cricut:

