Made in 2005. We swapped heads, simple paintjob, verified that the sound effects were intact. We then cut the arm off at the forarm, and bored out holes. Into each hole we inserted a rare earth magnet(possibly neodimium) and applied magnetic paint to the contact surfaces liberally.

We would like to take a few minutes to once again thank the manufacturers of our supplies, in particular Dremel and Rust-Olium.
Dremel cutting disks and circular saws allow a very thin kerf cut required to not rebuild a significant part of the arm after the cut.

Rust-Olium. We haven't mentioned them yet that I am aware, but they have a few WONDERFUL products. First, we have yet to have Rust-Olium not stick to anything we tried to paint. It takes some time to dry, but dries completely, and without tackiness. They also have specialty paints which answer some difficult questions. For this project we used their Magnetic Primer. This paint goes on thick, and stays thick and generally smooth. It is truly magnetic, and will be affected by any existing magnets that you cover over, but it is incredibly strong, considering it's only paint. After it dries it takes color wonderfully. There is one other paint which we have used, a glow in the dark. This is also great, and very bright.