Keep Calm True Grit Heat Changing Mug

This Behind the Lines True Grit Heat Changing Mug will leave any potential coffee drinkers red faced, as the words on the front of the mug change when hot liquid is added to reveal the phrase "Keep Calm You Old Git", which any potential victims won't see until you point it out to them.

Your Uncle may think he is getting a nice ceramic mug, but unbeknownst to him as soon as he sits down for a quick cuppa people will get a completely different impression of him! Great gift idea for the grumpy man you know or as a jokey gift for someone in the office.

Mug dimensions: Width:10cm Depth: 8cm Height: 8.5cm. Holds 10 flu.oz.