Flyfisher's Kayak/Canoe Roof Rack
Several people have asked about simple ways to mount a kayak on the roof of a car. I had an old mounting system that used rubber suction cups from 30 years ago. The rubber had cracked years ago and I had given up on trying to find new cups for it.
One day I was going through Bass Pro World in Cincinnati and came across some cheap canoe mounting blocks... $2.50 each if I remember.
They work very well on a 2x2 to mount a roof rack.
Flyfisher's Kayak Page