Davros has seen the error of his ways so the Daleks are feeling the Christmas spirit on the Doctor Who Decorate! Illuminate! Celebrate! T-Shirt.
Perhaps, like Scrooge before him, Davros was visited by the ghosts of Christmas Past, Present, and Future, with the Ghost of Christmas Future showing the Dalek leader that he would always be defeated by the Doctor. Now, instead of spreading death and destruction, the Daleks spread joy and happiness, sort of like elves who used to be determined to destroy the universe.
The festive image, inspired by the classic ugly Christmas sweater, was created by MJ.
The Doctor Who Decorate! Illuminate! Celebrate! T-Shirt is available for $20 at TeeFury.