Here are some ideas to help teach the cake decorating honor.

• Decorate cupcakes for a birthday party for underprivileged kids
• Some of the links below show short cuts that can help teach kids that cake decorating doesn't have to be hard even while they are learning the specific techniques required.
• You can purchase the Royal Icing already pre-made if you don't have time or know how to make it.
  

Links:

• howdini - How to make jungle animal cupcakes
• howdini - Barn birthday cake and farm animal cupcakes
• howdini - How to make an inchworm cake and bug cupcakes
• howdini - How to decorate sports cupcakes
• Wilton Icing fun workshop - Wilton Icing Fun is an easy-to-follow, 90 minute curriculum that helps project leaders walk kids through each decorating step, demonstrate basic techniques, and assist while kids practice on their own cupcakes or cookies.  They have sampler kits ($4.49) that contain all decorating tools needed for each Pathfinder.