I cut my watermelon in half and scoop out a chunk to act as a bowl or carve a simple jagged "mouth" into the rind. Using a marker, I lightly sketch a spooky face before cutting so my lines stay even. This piece becomes the centerpiece everything else builds around.
I slice my grapes in half and press a small chocolate chip into the cut side of each one. This step takes a few minutes but it's the detail guests notice first. I like clustering them together so they look like they're watching you from the tray.
I slice strawberries lengthwise and tuck a sliver of almond at the tip for a "fingernail." A light drizzle of melted chocolate or strawberry syrup down the side makes them look delightfully gruesome. I lay these in a loose row near the edge of the platter.
Using my melon baller, I scoop rounds out of the cantaloupe and score thin vertical lines with a toothpick to mimic pumpkin ridges. A tiny piece of green apple skin on top works as the stem. These add a nice pop of orange across the tray.
I slice bananas into thick ovals, dip them quickly in lemon juice, and add two chocolate chip "eyes" and an open "mouth" using a toothpick dipped in melted chocolate. I place these scattered around so they feel randomly spooky rather than too uniform.
I thread blackberries onto toothpicks with thin strips of apple skin or licorice bent to look like legs. It's a small, fiddly step, but it adds real texture and makes the whole board feel more "alive." I group two or three together near a corner.
Once every piece is ready, I lay everything out on my platter, clustering similar items so the eye has a resting point. Last, I drizzle melted dark chocolate across the top in thin, web-like lines using a piping bag for that final spooky touch.
I pop the finished platter in the fridge for 10-15 minutes before guests arrive. This keeps everything crisp and lets the chocolate set slightly so it doesn't smear when people start grabbing pieces.