I built my hoverboard, starting from a DIY prop shop video, in particular, using their decals posted at dropbox. Using the scribus software, I converted these decals into three letter-sized sheets for each, the front and the back side of the board. I added "MATTEL" using the Arial font (making sure to adjust the spacing between the letters to connect the two Ts). My modified decals are printed on letter-sized cardstock.
My printouts of the decals have a total size of 24 1/2" x 7", so when adding 1/2" all around, I get a total size 25 1/2" x 8" x 3/4" (some used 1" thickness, but I found that too heavy). The 3" backpiece is mounted at an angle of 22 degrees and glued using E6000.
The edges of the board are sanded to get a nice curvature and smaller details are smoothed using wood filler. The outer 1" area of the board is then painted red. Maybe the original one is more pink, but this is the paint that I had at hands...
The decals are glued to the board using the fast drying "Tacky Glue" distributed with a credit card evenly in a thin layer.
The pieces for the bottom side and the rotating disk on the top are made from 3/16" plywood using a laser cutter. On the bottom, the original movie prop has two cylindrical disks. I approximate these using three layers of round disks of 6", 5 1/4", and 4 1/2". The rotating disk for the top side is made of two layers of plywood, with cutouts that allow to mount the strap. Everything is then painted, and sealed using Mod Podge.
And here is the final board:
Since I needed a stand to hold the hoverboard, I decided to build one that acts as a hoverboard charger. Again, I cut the pieces from 3/16" plywood using a laser cutter.
The electronics is based on an Arduino Pro MIni (168, 5V, 16MHz), with a microswitch (which detects when the board is inserted) and a 10-bar LED battery level display.
The charger can be screwed to a wall, or simply stand on the floor.
When the board is inserted, the 10-bar LED battery level display cycles randomly through four different patterns.
Has anyone of you who has or is building a hoverboard tried using textured "floor graphic" for the decals? It seems a real world way to get the correct graphics and a "Grip Tape" texture. Also for those of you who display it with a car or otherwise have folks actually stand on it, they are high traffic decals that wont wear down.