The first task was to actually design the Apple. We knew it needed to be a sphere, and from game screenshots we figured out a rough size based on how it looked in characters' hands. More troublesome was the pattern on the surface of the sphere, which was hard to pick out from screenshots, and which was not consistent from shot to shot. We ended up designing our own pattern of channels inspired by the common patterns from screenshots and fan art.
One feature I was particularly excited about was lighting. The Apple glows along its surface channels, and I planned on using EL wire to provide this effect. EL wire glows uniformly along its length, uses very little power, and looks very bright in low light. First, Eva polished the inside of the channels with a wire brush to provide a bright reflection of the wire. Then, I worked out how to take the EL wire I had bought and work it into all the channels in a single continuous line with a minimum of overlap.