In the end, I'm glad we decided against using Luke for baby Jesus. First of all, there's the that line "but little Lord Jesus, no crying he makes." Second of all, Joseph and one of the kings were having a tug of war over the baby Jesus. I think this would've been harder on Luke than it was on the baby doll. So Luke slept through the whole thing. It was so sweet; and magically, the kids quieted down every time Dave started playing the guitar and we sang the Christmas hymns.
As you can see, Christmas morning was a hit. Santa provided a table-top easel for Lily and a hippo for Luke to ride. Dave really captured their delight. There is nothing better.