you might think about getting one with your initials if you're looking to mark an occasion with the stamp.
If your initials are between AA and TL, you can look for one that matches.
Best bet is to search
ebay UK -
http://www.ebay.com and put your initials in the search box for GB stamps.
Over time, you'll have many to choose from. However, be careful that you don't let it become an obsession
Chip
http://victoria.cgpostal.comadded note - I typed in ===
ebay . co . uk === (without the spaces) and the board "translated" that to ===
ebay . com ===
I'd look on the co.uk site.
chip