Somehow, these two bookplates slipped through and didn't get shared (except with their commissioner, of course). He asked that I kindly wait until after his friend's birthday, but then I plum forgot... for almost 2 years.
Here's a matched pair of bookplates for a client in Australia (other-side-of-the-globe art) from 2011. The theme was SF/F. The blank spaces in each were to be filled by the client's and his friend's names. I carved them rubber stamps for the purpose.