If you desire to wear the Jack Skellington Shenanigator a person who instigates shenanigans shirt onesie to school and if your school allows costumes to be worn I say go for it does not make any difference what gender you are, how old you are or how silly you feel it is the spirit of this go for anything spirit on Thursday you can explain to your classmates why you chose that costume. The short answer is that it wasn’t and it still isn’t, depending to which Haunted Mansion you visit. So Jack and his friends will be busy colliding holidays at the Mansions there for the foreseeable future.
I was the original pick to play both the speaking and singing roles of Jack Skellington Shenanigator a person who instigates shenanigans shirt but the filmmakers thought his speaking wasn’t up to scratch, so they replaced him with Chris Sarandon. But letting Elfman play three smaller roles in the film so he wouldn’t completely leave the project. When it was discovered Sarandon couldn’t sing, Elfman was brought back to voice the character in song. By luck, each of their voices matched the character seamlessly. Chris for speaking and Danny for singing. It worked out well.