Elias ordered 75 stickers, hoping she’d sell them, but never got around to it. Instead, she started giving them away for free. One day, she was hosting a yard sale and playing the song on repeat.

If you’ve been following Rickie Fowler the last three days at the U.S. Open, you’ve probably noticed him carrying a dark gray metal water bottle tricked out in several exotic stickers, as he ...

A small sticker that uses UV light to indicate when contaminated water is safe for drinking is revolutionising life for villagers in South-East Asia.