At some point through you'll want to get your Den up in front of a Pack meeting to do a skit, song, walk-on, etc. It's important not so much because it adds sparkle to the Pack meeting, but because it gives your Scouts a chance to work on public speaking and appearing before a group of people.
Here are some resources that you can use to locate a suitable skit. (There's probably a lot of duplication between these three documents):
The MacScouter's Big Book of Skits
Gary Hendra, January 1997 (Absolutely great, 118 pages!)
100 Skits Suitable for Scouts of All Ages
Unknown (60 pages)
Cub Scout Skits for You and Me
Frank Bov, September 1996 (76 pages)