Attached are screenshots from my linked even/odd object pairing tests. There are two shots of the rope/grappling hook test (old version) and three from an attempt using the same idea to generate artillery-like landscapes. (I have it set up to make the ground in the middle steeper than the flatter terrain, in hopes of it generating mountains.)

Sorry about the boring solid-colored research-paper-like graphics, but I am just messing around with behaviors and effects right now.