Ladders can always be repurposed for a snake-outing too. I've also seen some impressive 'jungle gyms' made from bamboo poles connected securely with wrapped rope. I use the base for a stand that I found in a thrift store- it's super stable, & I install a vertical branch in it, instead of the metal pole & strange thing that had been at the top of it- still don't know what exactly it was? Ya gotta love thrift stores, lol.