Karthus Skellington
https://upload.wikimedia.org/wikipedia/en/9/9a/The_nightmare_before_christmas_poster.jpg
Who's everyone's favorite undead singer?
Why not celebrate an upcoming Halloween or Christmas (or is it somewhere inbetween?) with a reference to the Nightmare before Christmas.
Karthus is practically a facelift of Jack to begin with. Dunno how you'd handle his super spindly appearance or his nice suit. But what would the world be like if you didn't try?