Hi dinkaya, welcome.
- Forget about the universities, they are very closed off.
- Here’s my personal picks:
Plastics
T&T Plastic Land
Art supplies
NYC Central Art Supply
Sculpture supplies (foam, clay, etc.)
The Compleat Sculptor
Foam/rubber
Canal Rubber
Lighting
Various stores on Bowery between Houston and maybe Hester
All other things
McMaster-Carr - You already started this topic in the other thread