Are there cheaper pool noodles than the ones I've been getting from Dollar Tree for a buck apiece? They're closed cell polyethylene, they don't absorb water, and I have some pieces that have been out in the sun for several years with no signs of degradation. As far as strength goes, well, yeah, they're noodles, so I generally avoid using them for structural applications.Good idea but the cheapest pool noodles have zero strength, no resistance to sunlight and absorb water, they are only good for toys.