Bests & Worsts Reviews from Amazon

What a disappointment. I got this for my adult son, who was, at first, thrilled with it. Pour in the hot water, make the Tardis sound and watch it disappear and reappear on the other side of the mug. Do it only once, never again.... We've always washed this mug by hand in lukewarm water, no soap, no scrubbies, just using our fingers, lightly. No messing with the outside, we wanted to be extra careful the decal didn't come off. Sadly, it started to chip, when dry, almost immediately. And today, after 2 months of occasional use, not even once every day, I was rinsing the mug, as always in lukewarm plain water, and a lot of the decal just slid off on my fingers. When I looked at the mug, much of the decal still on the mug was wrinkled, so I left it. After it dried, most of what was left was glued back on, some areas weren't. My son won't use it again lest the rest of the decal slides away. Bottom line, this would be cool, watching the Tardis disappear and reappear is fun. But after the first time, set it on a shelf and just remember how it worked. Not made for using every day for any length of time, you'll end up with a plain dark blue mug. If you want to keep it looking good, use it to hold pencils or paperclips. Keep it room temperature and dry. Don't touch the outside, except the handle and bottom. It might last longer than 2 months if you're very careful.