I've seen a few license plates these past few days that have given me a smile ...
HALDOL 5 (you must be a psych nurse! Does your other license plate say Ativan 2!?)
XL MINI (on a Mini Countryman)
ZPD DUDA (Why didn't I think of that? One of my favorite Disney songs!)
LDY BUG (on a red VW Beetle)