1. Target
Ask Your Friends App
Target enabled its fans to ask their friends on Facebook which costumes they should wear for Halloween. The app allowed fans to choose four costumes from a list and then they would share them with their friends in the news feed. Their friends then voted on the costumes in the news feed. The app also offered candy coupons. Screen shots below.
Start Your Poll

Select Four Costumes

Share Your Poll With Your Friends

Your Friends Vote in the News Feed

Candy Coupons

2. Clothing at Tesco
Spooky Halloween Shop
Tesco launched a Halloween store on Facebook. The store allowed fans to like and comment on products. Facebook fans were also offered an exclusive discount. Screen shot below.