This sketch creates a flickering Jack-o’-lantern by drawing a pumpkin, and then filling in the eyes and mouth with a random red/yellow color each frame. Try changing the color of the flicker!
This is part of p5 spooky sketches printout I made for CC Fest in 2019. That printout contains a bunch of Halloween-themed examples of drawing and image manipulation. Feel free to use it on your own or in a classroom!