Call Ron at Mountain Laurel Designs and ask if you get a small piece of their 210d Spectra Grid Stop.
For the bottom of stake bags that stuff is really, really good. Especially for sharp stakes.
If you have wire or nail like stakes another good method that I like even better is to use tubular webbing. Nylon or polyester is good. A diameter that fits tight around the stakes and is about 1/4" shorter than the stakes works really well. Cut to length, seal the ends. Seal one end closed and one end open. If the diameter is small enough that the stakes fit tight, they will not fall out of the webbing and the tight fit prevents the sharp points from poking through. I like either 1/2" or 1" diameter tubular webbing.