Wash the grapes, oranges, and apple, then pat them completely dry. Dry fruit helps the chocolate stick and the marker glide smoothly. Set out your tools and the platter so everything is ready.
Put the white chocolate chips in a small microwave-safe bowl. Heat them on high for 40 seconds, stirring every 20 seconds, until smooth. Pour the melted chocolate into a zip-top bag and snip a tiny corner.
Pipe a small round of white chocolate onto each grape to make the white part of the eye. Quickly press one mini dark chocolate chip into the center as the pupil. Let them dry completely before moving them.
Grab your black edible marker and draw faces on the mandarin oranges. Try triangle eyes, a toothy grin, or a silly surprised mouth. Let the ink dry fully so it does not smudge on the tray.
Peel the bananas and cut each one in half crosswise. Press mini chocolate chips into each half, pointed side down, to form the ghost faces. Two eyes and a round mouth are all you need.
Cut the apple in half, remove the core, and slice it thinly. Lay the slices across the serving platter as a colorful bed. The red skin gives the tray a nice pop of color.
Drizzle the caramel over the apple slices and scatter the chopped peanuts on top. Then arrange the ghost bananas, eyeball grapes, and jack-o'-lantern oranges across the platter. Step back and enjoy your spooky masterpiece