They used popups, the lights, they hang lanterns inside each tent (like for them someone had them) they brought the trees in from the hallways.
They made wooden signs with the name in Hebrew and English
To decorate:
Think baskets, fabric, table cloths, bedspreads, blankets even curtains
I love the well, they had one in each corner of the room, and they had igloos fill of water, that is where you filled your cups.
Also check this web site, they have some great pictures, I love the idea of how they made they “landscape of the town”
http://www.ifyouplanittheywillcome.blogspot.com/2011/07/christmas-in-bethlehem.html