Everything You'd Like To Know About Chickens

First of all view the following video and learn how to make a chicken out of a tea towell.

https://www.youtube.com/watch?v=thgRtzMQzO0

This is a rather humorous sermon to start with but at the end it becomes very serious.  Begin by talking about chickens - anything what soever as long as its about our feathered friends.  Mention types of chickens, colors and sizes of chickens, how many eggs they lay, different breeds of chickens, chicken jokes and the list goes on and on.  The more bizarre the better.  Everyone will be wondering where on earth you're going with all of this chicken facts.  Then finally you say something like, "I know you're wondering why I'm talking so much about chickens this morning.  Well it's because I brought one with me to church and he's right here.  (Show them the tea towell.)  "Oh you don't see him?  Well I guess not, I've got to lay the towell out flat, roll up this end to the middle, roll up the other end to the mddle," and you give a movement by movement commentary as you actually create the chicken.  Finally you pull the ends of the towell apart forming the finished chicken.  Be ready for lots of laughter.

Once the laughter has subsided the conversation goes something like this.  "One thing that I didn't mention about chicken was that it's an expression for being afraid, like you are chicken to jump into the pool.  There's lots of things that we can be afraid of but one of them is not telling others about Jesus Christ and what He means for and has done for you. 
Why would I be chicken to tell others about His saving my soul?
Why would I be chicken to tell how He forgave me for all my sins?
How could I be chicken to proclaim that He is the living Song of Almighty God?
The more personal the better.
Etc.
Etc.
Etc.
You may end this sermon anyway that you like.  You can see the direction that I went.  You just need to get across the point that as much as Jesus has done for us, how or why can we be chicken or afraid to tell others about Him?

BONUS:
Click on the link below for bonus materials pertaining to this particular sermon.
https://docs.google.com/document/d/1LESAYdYSI097gl3WFJXBLkLXI9-6e9xopHd86l-Ldj0/edit?usp=sharing
You'll find a Chicken card that you can give to the children and small cards, four on a sheet with space for them to write on the back.