To make sublimation tumblers there are three things you need to remember. First, only use sublimation paper printed with sublimation ink. Second, only use sublimation tumblers, not just any tumbler. Lastly, use a heat press machine designed for tall tumblers, not for mugs.
How to Make Sublimation Tumblers? – HTVRONT
How to Make a 3D Tumbler (and 10 3D Sublimation Wraps I'm Obsessed
How to Revamping an Old Tumbler Using Holographic Glossy Rainbow
How To Sublimate Tumblers / Easy Sublimation Tumbler Tutorial
Religious Sublimation Tumbler Designs, Christian 20oz Skinny
How to Make Sublimation Tumblers and Sublimation Shirts
How to Sublimate a Tumbler with NO SEAMS!
Hobby lobby sublimation blanks 😍 . . . . #hobbylobbyfinds
Volleyball Tumbler Design, Sublimation Tumbler for Girl