make your own.
1) Go buy a pack of whatever color t-shirts you want(fruit of the loom and hanes are least expensive) from Walmart or Target.
2) Go to Staples and buy the t-shirt prints that you can make with your home computer printer (be sure of which one your buying, Avery makes good ones but one is for dark t-shirts and one for light(the dark are more expensive))
Money Saving Tip: if gray is t-shirt color you get then you can use the light t-shirt transfers for it.
3) Go home and make whatever design your heart desires
4) Print it and iron on
thats it and its really inexpensive, like $20 for 6-10 new t-shirts that are all custom.