WWJ for 3 letter initials
If it's 10 characters - I'll put in Wayne J if I get GC, if it's only a high score it's back to WWJ.
Variations have included "Wayne Fail" and "So Near", if I've just drained with the wizard mode lit but not collected.
I once entered WWK by mistake on a super high score on my TSPP, it remained there for months and months until I finally managed 4 scores to surpass it. A friend thought it was so "hilarious" that it's now an official default score on his Forbidden Planet table
I also played an Italian machine (can't remember the name, but I think it had some kind of weird floating playfield that rocked from side to side). I got the GC score, but for whatever reason the letter "J" was not in the selection when it came to entering my name, so it was back to WWK