I used this reindeer motor;
Cam Arm Kit Includes Motor
Wood, mine was cut at 15"x20" but any size works, I used a thicker piece for the bottom and a piece much thinner on top. I cut the sides only after measuring the height at the top of the magnet after it was mounted to ensure that I could get good contact.
Motor mounting material, I used a lot of scraps that I had so you may think of a better way to mount this motor. I used strapping metal only because it was pliable enough to bend and to hold my motor down firmly.
aluminum scrap, the length will depend on the size of your board and the amount of movement you want for your board. 12" should be more than enough to start out with and you can cut it down to fit. I took the arm off that comes with the motor and screwed the aluminum bar down to the plastic arm and used some washers underneath it to level it out a little. I actually have two different for ease of mounting the thinner piece but really only one is needed.
Magnets- just bought a bag of about 6 or 8 at a craft store. I used a piece of scrap metal to hold the pieces from trying to attach to each other. I think glue would have worked just as well here. I used 3 on the aluminum bar and 2 under the panache.
The metal piece that the bar touches is used to reverse the polarity of the reindeer motor. Without this, the crank arm will make a complete circle. Now you may even want to have this effect, this is your project so you decide the look you want. This is just a piece of scrap metal I found, but even a piece of wood would probably work if you can't find anything else to use.
The design on top was the most fun trying to pick just the right font. I ended up using Viking and some clip art. A piece of carbon paper to trace the design and I would highly recommend using a paint pen to mark rather that a permanent marker as it runs a little. I used a wood stain then a coat of polyurethane and lightly sanded it with steel wood after it dried to smooth it out a little. It could have used a second coat but I needed to get this out in the mail as this was a gift for someone else.
I added some hinges to the back.
The panache was made with the same wood as I used for the top of the board. I drilled out an opening on the bottom trying real hard not to go all the way through then ended up just chiseling it out. Anyway I glued a magnet in the hole and then added another (just stacked them) to make it appear to float better. I actually think there is less friction lifting it up off the board like that.
If you find that you don’t get enough contact you can prop up the motor a little by wedging scraps underneath the motor to lift it up. I did quite a bit of tweaking to get it right, so have fun building.
Feel free to ask questions as I know this is a very vague how to but I think the video will be more help than this how to.