Make your own Jeans - Affordable ($59-$79) custom made Jeans
Voodoo Manufacturing - Fast, affordable, high-volume 3D printing
Woodies Custom Shirts - The Best Shirt | Made to Fit You
Printful Integration with eBay - Sell products on one of the world's leading marketplaces
Random Resources - Resources for entrepreneurs
Mockupify - Automate your print-on-demand product creation process