My wife got some SportSafe swimmers body markers for Christmas and last night she decided to tag my body with some humiliating graffiti!! Most of the ink washed off in the shower this morning with a washcloth and soap, but the clear HT seems to be permanty stained with the ink. It's a nice shade of crystal blue and is still clear so it looks like a fake colored crystal. It's not really that bad, I kinda like it. Just be careful if you get some markers and you value the original clear look of an HT. A lot of ink rubbed off onto the bedsheets as well, hopefully it washes out.