When Rob and I were searching for a name for Baby O we were also thinking how that name would have been shortened or nicknamed. We were aware of the fact that no matter how short a name is, there was always going to be a shorter version. In fact, many names didn't make the cut simply because we didn't like their short version. With Emilia, instead, we have several good options. So far we have been calling her Emi, Milly, and Mimi', all nice and sweet nicknames, I think.
Rob, however, loves calling her *Monkey*.