A Deadpool Bob Ross heat change mug by Thinkgeek:

Celebrate Deadpool 2’s bizarre homage to Bob Ross immortalized as a coffee mug. Fill it with whatever makes you happy. Or, better yet, use it as a paint water mug for cleaning your brushes after you whack them off! Just remember not to drink Yellow Snow. It’s nasty.

[Marvel Deadpool Bob Ross Heat Change Mug]