A1A Can't it be printed directly onto the card instead? Specifically, can the seal be drawn on the card during card production?
BA7MAT A1A Yes, it's possible, but… it lacks the sense of ceremony that comes with hand-stamping. Similarly, stamps like hot wax seals and steel seals.
BI7BTC Ariel Requires reformatting without specifying a region; I can help you with that if I have time.
suiyi BI7BTC Thank you for sharing this, I would like to request the source file for this style (the re-edited version with regional modifications): bh6rwq(AT)foxmail.com
BH6BMJ I also have a much simpler version: one eraser and one knife, which you can carve with. How great!
ba7ogj BI7BTC You could try using a light-sensitive stamp; it's relatively inexpensive and offers good accuracy, allowing you to make one yourself.