This has gotta be one of the coolest vehicle this holiday season. ROCKETMAN, Ky Michaelson, decided that he didn’t have enough fun on the conventional sleigh, so he went ahead and installed a rocket.
While his original intention is to make uphill climbs easier, I bet it would be more fun if the rocket was powered during downhill.
Source: MAKE: Blog
I’m sure every kid would want one if they sold it in the departmental stores.
Even though I never watched Working!! myself (wished I did), I... – 
“I’m sure every kid would want one if they sold it in the departmental stores.”
Even it if its cool, I´m pretty sure many kids will end up in a hospital…
WTF?
飛べ！