This device from UK-based Kinetic Innovations Ltd. is designed to keep legs in a squatting position for longer, 
alleviating aches and pains after a long day of skiing. Likely designed for older, bad skiers like ourselves, the device comes in three styles for different weight: blue (weak), red (medium), and yellow (strong) all for the same price of £289UK or $600 US.
The purists are predictably not happy. Here’s Mark Frary, wintersports editor of The Times of London:
I put the Ski Mojo in the same category as heated chairlift seats — the patio heaters of the skiing world — attempting to warm up the entire outdoor world just because you can’t being a little bit chilly. The Ski Mojo is yet another invention for the pampered skiers that are increasingly cluttering up the slopes. If you don’t want aching legs at the end of a hard day on the slopes, then you might as well invest in a snowmobile and be done with it.
Product page: Ski Mojo …
Times Online: Head to head: ski-Mojos, cop-out or cure-all? …
More from Be Sportier: Ski-Mojo Prolongs your Skiing …