Kayak caddy made from a plastic bucket, two wheels, a 5/8" OS diameter copper tube and an axle rod from an old shopping basket. Works great for smooth streets. Larger wheels would be needed for rough ground. Just strap 'er on and pull. Many variations possible.

What you need: two wheels on an axel, copper pipe to hold axel, strap to hold kayak, 4 gallon pail cut to size so wheels will spin. Put it together.

Idea by Ancil Nance, feel free to copy and improve.