The foam method works well for anyone interested. I use foam tube over the skids on my EP550 and it makes landing in snow a bit easier, though it'll still sink in the light fluffy variety.
Pool noodles are too thick for smaller helis anyways. If you want good stuff, visit a local home depot or hardware store and just pick up some of the thin foam tube insulation used to go around the copper hot water pipes in your home. Works' great and it's super cheap

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