Help Me Merge, Hobo

The other day I noticed that for some reason, my last name was part of my user name. I went into my profile to change it. While i was in there, I clicked the add other log on button. Somehow through that process I ended up with 2 accounts, both named "Shelly". I drew on the 2nd Shelly account, before realized that this happened. Is there any way to merge the 2 accounts, or to add the 2 drawings on the one account to my main account? Please help. Thanks