Zynga's Mafia Wars has embraced the April Fool's day insanity ..
At the moment the game is offering a whole range of unicorn related upgrades!
See below for examples
The garage is now a unicorn castle
And you can upgrade it:
Kind of fun I suppose, but I don't understand why they just changed that one element and so thoroughly ..
and here are the various parts you'll need:
Kind of seems pointless, or maybe this is another "tie in" that I missed out on?