Well it's a bit of a stretch I'll admit, but I couldn't resist using the Sonic Screwdriver mixed with the pony lore of the parasprites. And sure, they are weak to light, but Celestia was kind of... possessed.
I had a great laugh at Pinkie in the last couple scenes. I would ask what she was doing with a trumpet in her mouth in the first place, but I have to understand that it is best not to ask questions when it involves Pinkie; the answers only lead to more questions. I'm loving this comic so far.