A Thermos-Tat
You know you’re getting old when you get excited around a high-quality thermos. These ingenious inventions show just how far engineering has come. Whenever you need a cup of boiling water, you don’t have to turn your stove on every time. Just fill up a thermos and you can hot tea throughout the day.
We’ve conceded the point that thermoses are totes awesome, but are they awesome enough to get a tattoo of? They are, if you can turn it into a pun. It’s a thermos tattoo, as in thermos-tat. It’s funny because both inventions are used to control temperature.