Other people have designed a usable Klein Stein, but Bathsheba's creations are a little bit special, not least because of her own fantastic descriptions of them. An artist who taught herself to use CAD to design her mathematical sculptures, she is also possessed of a certain dry wit. Perhaps it was the ten years she spent years working odd jobs, including programming, to pay the bills whilst she both learnt the tools of her trade and waited for them technology to catch up with her ideas. I hope someday my scientific abilities will be united with my embryonic artistic ones as the Klein bottle might facilitate my union with my beer.
Bathsheba does most of her work in subsurface laser damage in glass. I want the geodynamo and a Buckyball keychain. What would you pick?