One thing that always bothered Rocks Off growing up as a born-again Christian child who was into the apparently godless world of Star Wars was whether or not they celebrated Christmas. The birth of Jesus Christ and stuff. Santa Claus, crap that matters. We can only assume under Empire rule that such a holiday would be unheard of.
Since they were from a galaxy far, far away, did they have a holiday where you got new cleaning droids or tunics? Maybe a new lightsaber from the wife? Did they sit around a tree and bask in a hazy tryptophan-like glow from all the Bantha and Beldon meat they had?