I'll take a look at a different pig and see what I come up with. May be better without it.
As for t-shirt printing, a printer should be able to change the color easily, but may charge a fee for it. I would also consider a simplified logo. Multiple color printing can get a bit pricy depending on how you're printing. If you're silkscreening, simple, solid colors generally work best.
I'll work up a version that's less complex as well.