Chell's Portal 2 potato GLaDOS
Why? Because you can't have a proper Portal 2 cosplay without your friend GLaDOS!
I knew the convention was going to be very crowded and some parts of the portal gun were too thin or flimsy. I planned on having the gun checked in the cloakroom until the time of the contest (after that, I didn't care if something broke off). So I needed a prop to hold for the early hours of the convention, before heading out for the contest. This was such a fun project (and I'm calling it a project because up until it was finished, I still wasn't sure if I would take it with me) and also the first time I used LED for cosplay.
I took tin foil, shaped it into a potato and covered it with 3 layers of plaster bandage. The boring part was that I had to wait for each layer to dry before adding the next one. It took all night!
After the shape was to my liking, and solid enough, I sanded it to make it smooth, and punctured a hole to remove the tin foil. That hole was done on purpose, because it would be the place that the LED's batteries would go.
The metallic face was made by craft foam, carved with sculpting tools, and painted with acrylics. Added a clear plastic sheet, that I sanded to diffuse it and painted it yellow.
The wires were a combination of hollow plastic necklace chord and thin wire (both materials are mainly for jewellery making). The connecting parts (I'm sorry, I don't speak electrician) were craft foam, shaped, glued, and painted!
LEDs seem to work fine and the batteries fit perfectly into the hollow potato (thanks dad!)
Unfortunately GLaDOS was one of the props that didn't make it. Her lights, literally, went out the night after the convention (must've pulled a wire on the drive home) and the rest of her is actually missing. Whereabouts unknown!