So we organised an in-game Secret Santa for our D&D 5e game, and I got our dear half-vampire (monk work-around). She is terrified of insects (ironic, I know).
I would like to give her a pair of sunglasses, but imbue them with a spell, that changes the appearance of anything you're scared of when worn.
Our DM is allowing a rule of cool to a certain extent, as long as it's not ridiculous. How can I make this work using existing spells, or anything similar?