Thank you for your suggestion. I had never seen Devils Tower before, that is one gorgeous and intriguing picture! I neglected to mention this in the opening post, but I am using geological strata in the bottom section of my object, so that is at least thinking in broadly the same direction. I am...
Thanks for your reply! I've considered hourglasses in a number of ways, but I'm far from the only participant, and I'm afraid there will be a *lot* of hourglasses around...I'm intending to go with geological strata and a tree growing on the top stratum in the bottom section, identical copper...
I sincerely hope that I'm posting this in the right place and without violating any etiquette.
I've come here looking for opinions and suggestions from a community of people far more proficient in the field of physics than I am, with a topic that is probably a little unusual. The situation is...