that's a nice design.
Have you looked at the pendulum clock by steve petersen? it's a very nice design- and mine keeps reasonably good time considering.
I have a truly impressive colletion of flexi-dinos. Ostensibly,they were test prints. For the kids. (Niece and nephew. No... I don't play with them. why would you ask that? no seriously. I would never. why would you ask that?)
As a side note... the flexi turtle is a total stoner.
A bunch of too inaccurate calibration prints, after my hotend failed earlier this month and I'm rebuilding my machine and dialing in the settings again.