Thanks to the excellent work of Gina Sekelsky (aka Letter Girl on Etsy), I now have my very own return address stamp and bookplate stamp in my handwriting.
Return Address Custom Calligraphy Stamp
Bookplate Custom Calligraphy Stamp
Working with Gina on these stamps has been great, and I'm so pleased with how they turned out and how well she reproduced my calligraphy (which can be quite difficult to translate to rubber). She also recommended using the Tsukineko VersaFine ink pads for calligraphy stamps, as they can reproduce fine details better than some standard pads.
If you're interested in custom calligraphy for a stamp of your own, drop me a line! I'd love to hear from you.