Change my name!

The past weeks my name has ventured between Astrid, Astor and Osten. Noone seems to get the hold of my real name when I'm abroad. I regard my situation as an expanding problem, so there is time to do something radical.
Solution: nickname!

I'll put a poll on the page, and I really hope you'll help me find the best nickname!
Please vote for what you think would be easiest to use internationally, that would be super duper great! Thanks!
Ester out no more!