Self-made Bad Piggies contraption travels on land quite fast!

Boys made Bad Piggies contraption today out of an old wooden box and three broken Alvar Aalto stools...

Notice also the small wheels attached to the wooden box.

Notice the handbrakes on both sides of the device which, btw, travels on land quite fast!!! Priceless!

Bad Piggies is popular puzzle video game developed by Rovio Entertainment.