my given name and first letter of my surname - being really creative, it's in lower case!
It came from a dictated email address yonks ago and it has stuck with me.
Of course, everyone thinks I am an "Erick"!
No, it's the good old Norse "Eric".
(Mind you, Erick and Erik are known variants.)
I should have gone for my initials ("EEK") with a few extra "E"s thown in:- "EEEEEEK" (No-one pinch it now - it's going to be my personalised number plate one day!
I have often been known as "Eccles". I have also had "Stumbo" (a painful childhood memory) and "Stork". I could live with the last one. A test of age - who knows where that last one might have come from?