Is there somewhere I can order good quality tshirts with my own designs? 

I want ethereum merch without any corpo ads

cottonbureau.com is solid, I've used them for small print runs.

Tricks with polynomials and Riemann-Roch spaces. Breaking into the platonic realm to pillage forbidden abstractions. Starknet grantee.

Founder, designer, & product guy at /basepaint and /eigenlayer

also drop the store link when you make it because I too want ETH swag with no logos

Will do! Ill share links to designs first. Would love some feedback.