Replying to Tall T's (Please tell me what you guys think)

Alright so this is all basicalyl just in my head. Im thinking about making a small company that would sell Tall T's. They would be about 7.50 each and it would start with like 3 colors. no big logo in the middle like a small logo in the corner maybe stitched on maybe screen print. (again this is all a idea) if i do go through with it however im gunna do a survey and have you guys pick out the top colors you want, materials, sizes.

What do you guys think?
Any input would be  apreciated.