Bonnie made her own R2D2 pinhole camera. She told me she had big plans when she saw the pinhole camera weekend projects podcast. Wow!
To make a shutter (this will go over the pinhole until you’re ready), you can simply use a piece of thick black electrical tape to hide the pinhole, and then when you are ready, take the tape off. You’ll place that piece of tape back on when your exposure is finished. Now your camera is finished! – Link