I'm working on a new spinner design, inspired by Ramin Razani's designs in his book, Phantastische Papierarbeiten. Another of those elusive out-of-print titles!
(Pssst, you might want to zip over to Libros Pop Up, not that you heard it here.)
If you're not placing the name, he's the designer of this spinner that activates when the card is opened.
And probably this one, too. Click the link for template.
In the meantime, check out these books-to-drool-over.