If you can take a picture of it, we can put it on!. Patented thermochromatic sublimation process. Mystique coating disappears as mug heats up to reveal hidden message. Top-to-bottom full color imprint standard. Optional screen printed clue on top of Mystique hints to your hidden advertising message (silver recommended vs white). US PAT# 6281165 US PAT# 6759099. US PAT# 6902775 US PAT# 7166333. Note: Full color images are slightly visible even when Mystique mugs are cool. Comfortable four finger D-handle. Hand wash recommended and microwave safe.