Goof Board

So I came across this Goof Board action the other day. It's a twist (quite literally!) on the Indo Board that has been around for quite sometime. But the twist on this one is that the board goes from side to side rather end to end. So you get a sideways motion - similar to surfing.

Now given I have a carpenter in the family, I'm sure he could knock me something up as although I am sure it's worth it, $139 is a bit too spenny for me...