How do people make fingerboard wheels?

ok so take a techdeck wheel and get some paper and roll the paper i to the size and fill it with silicone or uruthene and let it dry take it out if the roll and cut thr pieces that you want drill a hole half way trough and drill another hole the size of a axel and tada! complete.

EDIT: the drill bit size of the axle is "1/16 inch" and the drill bit for the hole half way through is probobly "1 size BIGGER" than "1/8 inch"