I used to have a handmade one. I used a round metal tube approximately 18" tall and 1/8" thick, sealed at both ends with metal, and a steel rod threw the center. The roller also had a brass cap on one end so that I could fill it with water for added weight. I left it out by mistake during the winter months while it was still filled with water and when I checked it come spring time the thing split open. Damaged so bad I took it to the landfill. /forums/images/graemlins/mad.gif I've been thinking of making a similar one again but taller, perhaps 30" with the same cap idea to add water. Then I was thinking of buying a concrete culvert, standing it up on its side, and adding some concrete mix one bag at a time. The problem with the concrete culvert is that it would weigh a ton (pardon the pun) /forums/images/graemlins/confused.gif all the time. I still might go back to the metal roller first. Got to check the steel supply areas and cost.