I already posted the clinging crosses that we made, here. A second craft was these "painted" rocks. There are lots of examples on line that are gorgeous. The kids enjoyed these and they were simple and inexpensive. I printed out several sheets of sample ideas to get them going. We used black and silver permanent markers for simplicity and contrast. They were to design one rock with at least one word on it. They could make up to three rocks, until everyone was done, and if there were leftovers they could do more. This was a very popular and successful craft. There are many Bible verses referencing rock, foundation, etc. that these can be paired with. I once saw a cute thumbprint baby Jesus that would be a great Christmas craft. I have even seen painted rock nativities. Try googling "rock crafts."