I spent hours in Copenhagen looking for quirky light bulbs. I found them in many bars and cafes but not in any shops. Well, the Scandinavians might actually order them from CEF on Abbey St. They have a lovely little selection of vintage style bulbs with screw and twist end, in tinted or regular glass. At a very reasonable price. And the staff are so friendly! CEF also sell light switches and other bits and pieces for your home. When I grow up and buy a house, this will be my supplier of all things lights– related.