Before wakeboarding was invented, watersports pioneers of the 1960's experimented with objects to ride behind the boat. Some of the more successful riding devices were wooden discs. Grandpa would take a piece of plywood to his woodshop and cut it into a circular shape. The family would take turns 'discing' in between water ski sets. It was a great way to introduce people to riding behind the boat without the learning curve associated with waterskiing.