I wanted to make t-shirts for my two nieces who's birthdays are at the end of this month.  They both are in gymnastics and I thought that a gymnastics shirt would be great for both of them.  I bought a sample pack from Nick at http://www.craftvinyl.com/.  The pack comes with 9 (4x9) pieces in 9 diffrent colors. Included is the teflon sheet you need to use with heat vinyl.  Nick includes fabulous directions with the vinyl and all I had to do was follow those and her is my first shirt: