Originally Posted by lhowemt
Ouch! Plastic bottles are what i use, no sharp edges.
Second that. Someone recommended soup cans, used them and the sharp edges trashed my cover. Now I use 1 L bottle bottoms. Next cover, I will sew in a reinforcing patch where the oarlocks ride and cut a hole there so they poke through. Lower profile to catch less wind and make it easier to tie down. Car covers are the way to go. Tried the tarp method and it always turned into a sail.