Pricing is a question you should only answer once...in the very beginning..not per shirt.
wholesale..white..colored...standard tee...designer cut..
limit moving parts. Print on 1-3 kinds of shirts,
price for one side-2 sided...design around that.
difficult pricing , hard to figure pricing , will kill sales faster than average design. One of the reasons **** shirts can sell on Zazzle...easy wins for everyone