Most of the time I just drop the Kleingeld bit, since I've only had it since 1993, as many people know me simply as "Tim MacKenzie".
In case you don't know, "Klein geld" means "small change", or "small money".
Kleingeld is reasonably hard to pronounce correctly for a native english speaker, as it has the soft "g" sound common in middle/north European languages (that's a sort of back of the throat gh... difficult to describe in text). It seems instead of changing pronounciation to Klein-geld (the natural english prononciation) he stuck with Clan-ghelt, which causes most people to say "whawathat??!".
When he was naturalized (neutralized) in 1968, my father Henk (or Hendrick) Kleingeld changed his name to Hank MacKenzie. My great-great-great-great-grandmother (there might be a couple more great's in there... I'll have to check my grandfather's family tree) was a Caterina MacKenzie and she travelled to Holland (from Scotland) while William of Orange (I'm not sure which one, probably V) was around. Anyway, she married a Kleingeld.