Jim Timber
Veteran Member
Could work. I've never tried it. I know the tree stand folks have had success with foam filling their tubes. Just make sure you get the window/door version or you'll have the potential for bulging. I've popped door panels with the other stuff in my early car stereo days.
You might even have luck using pool toys or pipe insulation wrap mashed in from the ends.
You might even have luck using pool toys or pipe insulation wrap mashed in from the ends.