Being the youngest in my family I also got the name Titch, although only from my big brother. Edain is my most common nick-name although some ppl use derivatives of that, the most common being Ed or 'dain (pronounced dine).

The nick name I had through high school was Bowak (bo-wack) as it's a common mispronunciation of my surname although I think the oddest nick-name I've had from from a french horn player at band pratices who always called me Moose.