As a former bike mechanic I’ll throw this out there: you can probably get foam insulation tubes for free, or at least cheaper than pool noodles, by just going into your local bike store and asking if they’ll spare some insulation. Bikes are shipped in that stuff, and we would only ever reuse a small fraction of it.

I usually filled a big trash can with all that packing material every week. I’d rather just give it to someone who would use it.