I made hooks from a cheap two dollar set of stainless skewers...the flat kind instead of the round rod. I cut them to length and put a point on the hook with my bench grinder. Then I bent them using a tubing bender. Last, put them into the vise and used pliers to twist the eyes of the skewers at 90 degrees to the hook. Make sure the hook is long enough to go down past a couple rib bones.
My smoker has hooks built into the top, but people hanging on rebar would want to open up the eyes of the skewers to make the top end hooks too.
Brinkman water smokers (elec and charcoal)
Weber kettle grill
Uniflame Gold Stainless 5 burner propane grill / rotisserie
BBQ Grillware upright propane water smoker