Get the closest possible to the maximum5.0 oz.
Step 1: Acquire all the parts
1 Ea. Pinewood Derby boxed set.
4 Plastic wheels
4 Metal "axles" (nails)
Set of fishing weights
1 Ea. 35mm Film Canister with lid
Fast Setting Epoxy or Hot Melt Glue
2 Forstener bits (1 the size of the cannister, and the other slightly larger than the lid)
Dremel Tool with sanding drum attachment
(You can forgo the drill press and bits, but you won't get the tight fit that looks good.)
Step 2: Drill a hole in the car body
1) Flip the car over on its back.
2) Using the drill press and the larger Forstener bit, Drill a hole slightly deeper than the thickness of the film canister cap.
3) Replace the bit with the smaller bit and drill a second hole, this time drill as deep into the car body as you can without protruding on the other side.
4) With the Dremel tool, sand a notch on one side of the canister so you can get your finger under the cap to remove it.
5) Test fit the canister and lid to the hole.
Step 3: Glue the canister to the car body
2) Add some glue to the inside wall of the smaller hole that you just drilled in the car body. Use just enough glue to attach the canister to the wood. You don't want it to dribble all over the place, specially between the cap and the canister.
3) With the cap on the canister, slowly insert the canister into the car body until the top of the canister lid is flush with the bottom of the car.
4) Turn the car over and sit it on a flat surface.
5) Put a heavy weight on the car so the glue dries with the lid sitting flush.