I like to play the Danish from time to time. It can lead to interesting positions very quickly. Here is a short game in the Danish, it is one of my favourites.
Danish Gambit

If you are interested I wrote up a more detailed introduction to the Danish Gambit.
http://www.chess.com/article/view/danish-gambit2
This is a cool gambit that can be played in many situations.. Norm:
Sicilian
If the gambit is declined there is no real disadvantage. Another variation is the half-danish:
It still has the open-ness and developmental advantages of the danish. Note that the bishops can be easily developed.
Here is an interesting variation that is sometimes played by black.
This is the final variation and the main defense played by black, it is almost a counter-gambit, leading to an interesting position but said to be relatively equal.
If you are interested in this gambit check out jrobi's video on it! http://www.youtube.com/watch?v=mCP9hgqOk6E
It is definetly fun to play in blitz games.