Here are a few links to help with your Webelos Communicator pins-
#1Play the Body Language Game with your den http://www.cubroundtable.com/assets/pdf-documents/Communicator-Activity-Badge-Outline.pdf page 16- has fun ideas for the body language game.
#5 Invent your own den secret code and send one of your den members a secret message. http://www.pbs.org/wgbh/nova/education/activities/2615_decoding_03.html
#8- Write an article about a den activity for your pack newsletter or web site, your local newspaper, or your school newsletter, newspaper, or web site.