MrsLMB------ cute ideas. But since I live in one of the two cities where VooDoo Donuts have a store---- I let them do the decorating.
Voodoo Doughnut - The Magic is in the Hole!!!
(I have to warn people that there is one X-rated donut at that link and I''m unable to delete it.)
My favorite is the Bacon Maple Bar doughnut.
Raised yeast doughnut with maple frosting and bacon on top!
That link might give people some ideas of decorating their donuts, Christmas or no Christmas.