Okay Carl, I got the bucket of sand figured out and I use a lot of PVC for blade and tool holders but it is not as organized as what you have done. Give me some more description if you are willing. Is the one just a 2 x 4 with drilled holes or is it some other material you used. The second one, what did you use to build it. It looks like a standard swivel plate underneath but help with how the actual circular organizer was built or what you converted to make your organizer. I might consider doing one or more of the three if I get to where I am willing to quit scrolling for a while in my limited time. I think I could do either of the PVC concepts but why spend a lot of time figuring out how to do it when I can get a head start from you. I do know the bucket of sand would not take long and in fact have used that concept on a larger scale - a five gallon bucket of sand, motor oil poured in, and then put shovels, spades, hoes, and garden tools in it.
Looking forward to more info.