He liked to think he knew Stanley relatively well by now - so Killian picked up one of the more serious-looking menorahs, one that wasn't decked out in fake jewels or too bright (and definitely not one of the battery operated ones because getting to actually light the candles seemed to be the whole point), and was satisfied with that. It would be fun, learning something new and participating in something new - plus he wanted Stan to be able to partake in rituals that were important to him.
"Hmm - " He rumbled another thoughtful sound, shifting attention to the more Christmas-oriented decorations. "Is it strange to say I liked the food the best?" he grinned crookedly. "I don't know what it was called officially, but I enjoyed the Christmas pudding. And picking out and putting up a tree, I suppose." Emma had lived with her parents though, in Snow and Charming's loft, so it wasn't as if there was a ton of space for a tree out of postcards - but they made it work.