This is the LED light I'm using:
https://www.amazon.com/QUANS-Blacklight-Fishing-Aquarium-Waterproof/dp/B06XJZL97N/ref=sr_1_5?dchild=1&keywords=50w+uv+led+light&qid=1609878284&sr=8-5
DIY 4 color press tutorial by I Like to Make Stuff:
https://www.youtube.com/watch?v=byGfMkUEWz0&t=352s
An even cheaper exposure unit tutorial by Ken. Industries:
https://www.youtube.com/watch?v=_Umt3VQY6KU&t=1s
I get a lot of my screen printing supplies from these websites:
http://screenprinting.com
https://www.anthemprintingsf.com
I make my background music using a Teenage Engineering Pocket Operator mini synth/sequencer:
https://teenage.engineering/products/po
The shirts I make are for sale here:
http://okaypins.etsy.com