stevenr:
With some of the imaginative minds on this site, I'm sure that can be accomplished.
Well, it could be accomplished by having a well-known fictional character portrayed by the actor or actress be the one to receive the spanking.
If you can't describe Emma Watson undergoing a panties-down paddling in current Library fiction, you can still feature Hermione Granger getting her bare bottom reddened, I believe.
So perhaps a general "fanfiction" Challenge would work best...

--C.K.