DIY Harry Potter Tee Shirt Tutorial from Sew a Straight Line. I like to use cheap run-of-the-mill (like Avery). You can get the paper for either light or dark tees. I’ve posted in the past that these transfers hold up really well in the normal washing machine. TIP: As with all printed grahic tees, make sure to turn them inside out for the dryer.
DIY Vintage Barbie Tee Shirt from Trash to Couture here. She made this for her neice who loves Barbie. You need tee shirt transfer iron on paper and a vintage Barbie image (I’d start here). Ink jet print the image onto tee shirt transfer paper and then add the 3D elements like tulle and ribbon.