Hey there!
I think this could be really cute but it is difficult from an Artworker perspective. With Christmas, there are a lot of well-known hats and items that can be turned into models in MC, but with Hanukkah, there aren't many. I'm not Jewish so my knowledge is limited, so the only two I can think of are the Menorah and Dreidel which wouldn't really work. Do you have any ideas for things that could work?
Also, something to keep in mind is that we try to keep religion out of Potterworld as much as possible. When it comes to the holidays it can be argued that Christmas has turned into more of a global cultural tradition and many people celebrate it without being Christian or religious. That isn't true with Hannaukah though as most of those who celebrate it are Jewish.