how about putting tennis balls on the cot legs?
i'd patch it with some tarp material, and silicone/glue stuff. you could even sew a patch on it, and seal the seam with the seam seal stuff.
when i use seam seal, i let it cure for a few days then lightly dust baby powder on the seams to keep it from sticking together when i fold the item up... works for me.
i also use homemade seam sealer... one part clear ge silicone to one part mineral spirits, stir with a paint stirrer attachment in my drill press... (use a stadium tumbler cup for the mixture), when it's thinned out to a consistent blend, i use one of those 1/2" cheap sponge/foam brushes to apply to the seams, let cure, apply the talcum or baby powder and voila!
tk
