I have a 20 month old grandaughter and a 14 month old grandson who are dressing up as Pebbles and Bambam for Halloween. I decided they needed a Flintstone Car to complete the look. This is how I made it...
Step 1: Log Sides
Using a cartoon picture of the Flintstone's Car I drew out the sides on 1/2" plywood making them the same width as a large swim noodle and scaled the length to match. Once cut these plywood pieces would provide the shape of the log sides and determine the scale of the rest of the car.
Next I cut a large 4" swim noodle in half using a table saw. After doing some basic shaping of the swim noodle with a large bread knife my daughter coated both the noodle and plywood with contact cement. I then bonded the two pieces together which provided the contour of the log sides.
After the glue was completely dry I did a little more shaping and trimming with the bread knife. I then coated the entire noodle side with Bondo-Glass (available at any auto parts store, large hardware store, or Wal-Mart) putting it on in one direction but a little sloppy so it would look like tree bark when I finished. Bondo-Glass hardens in about 15 minutes, which keeps the project moving quickly.
After both sides were cured I sanded them to remove any sharp edges. We gave the sides a thorough base coat of gloss black and then brown. This gave the sides a realistic log look.