Have you picked your Halloween costume yet? There’s still time, especially if you’re willing to brave the crowded, rubber mask–scented aisles of a costume store. There’s the standard witch hats and skeleton suits, tiny princess and superhero costumes for children, and supplies to dress as whatever’s in the pop-culture water. I imagine that this year, in 2024, we’ll be seeing a lot of Beetlejuices and Rayguns. On the higher end, celebrities don’t hit up Spirit Halloween for their costumes. Think Heidi Klum and her eye-popping, sometimes stomach-churning ensembles. Less costumes…