You can learn to do it yourself. There are plenty of tutorials out there on how to make your own plastisol transfers. I personally have not tried doing them but have ever intention of learning.
The basics are that you just screen print onto release paper. Everything is basically backwards from direct printing. Your print will be wrong-reading and the print will be done by putting the ink on in opposite order. You dont cure the ink, you just give it enough heat to gel the ink. Heat pressing to the garment is what will cure it.
There is more to it im sure, but thats the basics.
Screen printing a lot of designs in short order in small or single numbers is a unworkable solution, like the others suggested, try the plastisol transfer route, I'm gonna give it a shot myself.
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Ridgely, Operations Mngr. Out Da Box Printing & Design www.outdaboxconcepts.com
The only other idea i had was to just buy a TON of screens so that i could just burn them in and keep a screen ready per design. But im hoping to have over 200 designs done which would mean anything between 200 and 1000 screens at one time (depending on how many colours per design)
This may be just my perspective, but I really don't see that as necessary. Either you're not selling many shirts, in which case having 200 designs is going to do more harm than good. Or you are selling shirts, in which case you can print runs in advance because you're confident of getting sales. Either way you don't need to store a lot of screens (some, but not of everything you might ever print).
Re: How long does one t-shirt take question 
