My RL married initials are such that I don't have Mrs HU Munker just Mrs H Munker on cards and things (well, obviously I don't have that) - I think that any name has the potential for teasing and frankly, children will find something to take the piss out of if they so want and better that it's your name in some respects than a physical characteristic, IMO.
I really like Gabriel and Gabe. And I think it goes very well with Elijah too. What does Mr Bubble like?