This style of board is more or less based on the old way skaters used to make skateboards when companies stopped making them because they were deemed "dangerous".
material (i used):
piece of wood
Disclaimer: if you injure yourself with whatever creation you make using this instructable as your guide it is not my fault in anyway or form, its sad i even have to put this in but you get hurt skateboarding, it just happens.
Step 1: Roller skates!
Note that these are roller skate not roller blades, HUGE difference, roller skates have trucks and flatter wheels which are basically mandatory on a skateboard.
Step 2: Cut some metal!
Step 3: Gotta get some wood
After you acquire your wood draw out your board shape (or leave it as is) then draw a center line. A center line is a straight line a that is in the middle of you board, it runs length ways and with it you can line your trucks up to make sure they are straight. Now don't drive yourself nuts trying to line the trucks up, they can be a little off.