Small churches usually don't have a lot of volunteers. Here are some teacher-friendly resources that have worked well for them and elementary-aged kids:
ONLINEwww.GoMinno.comwww.answersingenesis.orgwww.coldcasechristianity.comBOOKSThe Case For Christ - kids
The Case For A Creator - kids
DVDElevate Curriculum (8 weeks per set)
What's In The Bible? (from the Veggie Tales creator)
Do you know of more?