Broadway Market is a Buffalo Easter tradition. It's pretty cool (although it would have been more fun for us if the boys hadn't been so droopy). If you want pastries, painted eggs, pierogies, or things dipped in chocolate, Broadway Market is your place! There is also a great variety of Polish attire available, since Dyngus Day is another Buffalo tradition. (Mike also got a Philly cheesesteak there that was so huge and messy it had to be eaten with a fork.)
The market is open other times of year, too, but apparently it's much quieter.