Lovely pieces there Sandi... the armadillo is a natural fo that construction... I'd be suprised if there was a formwork inside... the joined pannels are a natural exoskeleton..
Vic... there used to be a first task test you'd hear being given... when showing up for work.. for inside carpentery it was build a saw horse... you could tell in 10 minutes what you could ask of them to do..and they wouldn't have messed up anything you were interested in making.. and it was always useful throughout the day.. as a cutting table or lift... for framing carpentery.. it was hay .. bring that box of nails up to me .. which would require them to bring it up walking along a joist like a tight rope walker.. if they couldn't bring them selves to do it.. were unstable.. or sat down and scooted them selves across to you .. you knew they were to be of limited value.. it was also the origional drug test for shape up / or new workers... not so much if they were or got high... but at the start of work could they still do it...