I built this pad today from scrap material and a few hardware items. I began with a Velbon med duty camera tripod from the 1980s. Its mounting screw was fixed in place. I built a mounting plate with an L girder of 1x2 glued to a Masonite sheet. That sheet has two 1/4" holes; one accepts the protruding screw from the tripod, indexing it, and the other accepts a 1/4" securement bolt with wing nut. I drilled a 5/64 hole in the L girder to accept a 1/8 steel rod. It's held with a mini clamp having a nylon face in which I filed a groove. The blast shield is 1/32 sheet tin. A mini clamp keeps the rocket separated, and I will use the clothespin to hold down the igniter wires. Two coats of gloss white enamel finished it.