Writer's Block: By Any Other Name

If you could rename yourself in real life, what would you choose, and why?

I saw this question a few days ago, but I still find it very strange – you can rename yourself in real life, so why this phrasing? And even if there are obstacles of practicality, you can (a) ask people to call you by your preferred name and/or (b) use your preferred name to identify yourself in a new context, e.g. the Internet or fiction-writing.

I might do the latter, actually. I think I like "Robin Hamilton" or "H. D. Zimmermann" better than "Robin Zimmermann" as a nom de plume.