There are a few people in Cyprus that offer such service, they rent a small office somewhere and you can get a utility bill (1000 euro in total I would say)
But while I'm writing this I also recall that there was a similar thread on the forum where someone asked, there were several hints to cheap ways to get it in Bulgaria.. will post here if I can find the thread, otherwise google search the forum in the mean time.
Sass:
site:offshorecorptalk.com bulgaria utility bill