What do you call those clear coffee thermos' that you can decorate?!

Question: What do you call those clear coffee thermos' that you can decorate?

so ive been seeing these clear coffee thermos' around everywhere, where people insert pictures and quotes on the side. I'm thinking this qood be a great christmas present for my aunt, but i can't find them anywhere! what re they called?
thanks!

Answers:

Best Answer - Chosen by Voters

A tumbler.

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What do you call those clear coffee thermos' that you can decorate?!

Best Answer - Chosen by Voters

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