Everyone wants to skim stones - not everyone can.
And even if you could, usually if you're at work, at school or online there isn't a nice quiet lake nearby to practice on.
Fortunately, there's now a robot for that.
US ad agency Eleven has built a robot which can not only skim stones perfectly every time, but which users can log on and control.
That's right - you can skim a stone across a lake in Sun Valley, Idaho, without leaving your desk.
The robot has been built to promote the - admitedly beautiful - area, with all of its wonderful, enviable sunshine.
Unfortunately it only works during daylight hours (in the US) and it's also fairly busy. However we think it's worth the wait. As long as, you know, you're not waiting longer than it would take to go to an actual lake and skim stones.