We got these in the water over the weekend and thought I would share pictures. I mixed 1 60lb bag of concrete and poured it into a tote. I bent 1/2" rebar at 90 degrees on the end and inserted it into the concrete. While it cured my daughter and wife drilled a 5/8" hole in the center of the perf tube. I slid the perf tube onto the rebar in stacks. Then at the top I welded a chunk of rebar connecting the two together and retainging the perf tube to the concrete also giving it a handle to hook a rope in the event I want to move them. What do you guys think?