#1 - *to answer the question in the title. I like this more than the others because I have several 100 lb tanks that can be tough to move around alone.* #2 - Tiny Hammer - If I knew a Tiny Person & used a TIG Welder #3 - Joist Hangar helper - Would be good for someone laying out flooring or a Deck #4 - Stinger Holder - I normally MIG weld and made a magnetic swivel holder for it similar to the one you had made, but I do MMA or Stick welding every now and then.