[JesseK]

Conveyor roller bridge of despair. PVC pipe around steel may work? Rough length the average wheel base at the event - probably something like 24-28". Peak height is close to the rock wall's height.

A rock wall made out of a roll of carpet that is allowed to deform over the course of a competition.

A quarter-height drawbridge with less spring force - most teams could probably add something to their CDF manipulators to solo this from the neutral zone.

2 punching bags or a few steel vertical pipes attached to a "high bar"

Rough terrain with 1" more variation in the height.