Can anyone suggest a type/vendor for lightweight cylindrical foam, desired diameter approximately 1.5-2" and length 4-6'? Looking for something resistant to water -- non-absorbent, light, and stiff (negligable to no bending under own weight at 4-5 feet length). Looking for something reasonably sturdy -- something that can withstand about 8-10 pounds hung mid-point between a 4' cylinder that is supported at both ends horizontally.
This is for a science project. Thanks for any suggestions!!!
-- Paul Allen