D-IRTY bizjet
D-IZZY bizjet
M-YBUS can't find it but i'm sure it exists
M-IKEL Schumachers private plane
M-YBBJ a 737BBJ owned by some person
N1KE is a nice gulfstream from Nike sportswear
D-ICKS is a waterplane
D-ANKE a german bizjet, danke means thank you in dutch
G-GRRR is an english "bulldog"
G-BUSH is a British Airways A320
I-SMEL is/was a Meridiana MD-80
D-AILY is an airbus from lufthansa i believe
I-AQUA is an italian water plane
G-LIDE isn't a real glider, but still
ST-ALL used to be a B707, wonder what happened to it....
OO-JEE the most funny one i think, it's used to transport skydivers at a small airport in belgium.
there are many more, just search the internet, these were a few i know and a few i know they existed but searched for.