The Ultimate In Passive-Aggressive Pranking Is Here! Introducing the F-U Coffee Mug. You know who's the worst? Bob in Accounting. He deserves this mug. Ask him if he wants a cup of coffee, and when he agrees (what a kind gesture on your part), hand it to him in this cup. The sneaky middle finger will be obvious only when he goes to take a drink. Just make sure not to use this prank mug on anyone in HR!
Well-Made And Sturdy - The ceramic and porcelain mug is made for use over and over again.
Drink From It Yourself - Not only can you prank people with this, but you can drink from this mug yourself as much as you want.
Capacity - fill this mug with 300 ml of liquid