How to make a caster board?

They go by various names - wave boards, ripstick... They have two caster wheels and a spring loaded joint in the center. I've seen the caster wheels (inline style) in a DIY shop. Maybe there is a trick to making the connector using a simple hinge and some bungee elastic?

Blade Fiend7 years ago Great idea! i intend on doing it very soon with an old skateboard.
There's a bunch of different 'ibles on making them from old skateboards. Casters from wherever, IKEA's cheap.
so how do you make the lipstick from a skateboard?