I've seen some that resemble rocket launcher style holders on about a 30* angle. This keeps the rods away from the top of the tailgate when you hit bumps along the way. Saw one that layed on top of the bed, connected at front and back and allowed the rods to overhang the back a short way. No pics, I saw them at hiway speed from my rig windows. Folks that fish the beaches from their pickups have some neat ideas.