Hmm, I was in Copenhagen in July, didn't see any. I hope they'll come here ... :) Signs like these:
http://tinyurl.com/btaypbu were very popular a few years ago, it was wonderful. But they are very rare now. :(
There are only 4 Bjarka in Sweden, definitely not a Swedish name. Seems very Icelandic to me - I know a Bjarki whose mother is from Iceland.