Hey guys, so I saw this mildly cheesy commercial prop available

And I immediately thought, OMG how cool would it be to get this and swap out the black legs for some lightweight vines?! I could hide these above the wall panels (maybe through camo netting) and have vines start to move in the haunt/queue line. I contacted Morris about buying just the mechanism (no sound or speaker) but they said unfortunately they couldn't get just the mechanism.

Does anyone know what this mechanism is called? If there are similar ones out there that can be bought to make the vines?

Thanks for the help!