Tomorrow at 18:00 at Blågårds Plads, Global Dignity Denmark is having a happening, where you can decorate your own lantern and get something hot to drink. At 19:30, they will gotogether to Sortedamssøen and let go the lanterns over the lakes of Copenhagen to let them shine over Nørrebro.
There are plenty of places to grab some fast and relatively cheap food at Blågårds Gade. Go there early and have a coffee or a beer in one of the small, nice places. You should definitely go, because this is not something that's a very typical activity in Copenhagen - or Denmark. It'll be a beautiful sight!