Cell Phone

Have a leader walk in with a cell phone (it would be great if you could record a conversation beforehand that had static and was impossible to understand) Have the leader get frustrated and tell the caller to call back when there isn't so much interference. The leader can adlib the conversation and say "oh you went through a tunnel, I thought I lost you"…

Tell the kids there can be interference between us and God preventing us from hearing God. Tell them how our sins can get in the way and then tell them you have to know God to hear his voice. Lead them in a prayer of salvation and recommitment.