I wish lift would put up plans on how to make one. I'd love to try it!
BUT FIRST I'LL MAKE A RIDICULOUS CLAIM WIHT IT! AND LOSE MY CAMERA IN THE PROCESS! 
seriously though..do you guys think the rolling thunder will be one of those can't live without strength training tools eventually?
I dont think it will be that important but I would say that I rather have one than a gripper.
Want plans to make one? Heres what Im doing. Use an industrial roller, attatch weight to it any way possible, and pick it up. I will be welding chain to the ends of mine but it would work the same with rope and a pin through the spindle. Then attatch that to a 1 1/2" iron pipe from Home Depot. Use a thread on cap on the bottom to hold the weight on. You will probably figure out a "better way" to do it when you get to the depot but thats the fun of it all!
Will post pics.
