Re: Tron Legacy Costume t-shirt - WIP
I think that you may be able to find a local t-shirt company that could handle it...or learn to screen print
A quick search I did led me to /www.brokenarrowwear.com and I chose a shirt and set it to front and back printing with glow in the dark ink. 6 shirts is the minimum, and it came to $36 a shirt. I tried it with 25 shirts, and it came to $14 a shirt. It will be that way at just about any printing place. The more shirts that are to be printed, the cheaper it would be.
I'd look around your town and see if you could get a deal cut.
Going through an actual printing company or doing it yourself is the only way that you would know for sure if you got the design. Threadless is based completely on votes from the community, and from what I have seen happen, you really have to put yourself out there and advertise in order to get you designs printed.
If you wanted to screen print them yourself, it wouldn't be too bad either. It's not really a hard process. It would kind of cost a bit to start up, but if you reuse your screens the price would be worth it. I could write up a tutorial for you, or find a good on on the web if you like. You don't need all those pre-made screens and fancy set ups to do it, like a lot of sites show.
... I hope this gave you some ideas ^^;
I'd definitely want in on a run of these if you got them printed!