Fluidstance (for the poor)

Heard about the "Fluidstance" ? Neither did I until today. It's some kind of skateboard/platform where you stand while working at your standing desk, that presumably helps you burn more calories by forcing your body to readjust constantly to keep balance.

That piece of "thing" is made out of maple & aluminium & costs something like 400$. So i made this model in the hope some day i'll find some time to make a small one for less than 5$. Designed for 18mm wood sheets.

The dimensions are smal