Have a table with a wobbly leg? First make sure that the legs are secure: tighten any loose brackets or screws or re-glue any loose joints. If that doesn’t fix the wobbles, try this temporary solution.
Using a synthetic wine bottle cork (natural cork crumbles over time), mark the amount of space between the wobbly leg and the floor. Then use a utility knife to slice off the amount of cork needed to brace the leg. Use hot glue to adhere the piece of cork in place. Done!
You could also use slices of synthetic cork to make non-marring furniture feet or to pad the rough bottom of a vase or other item that could scratch your counter or tabletop.