Tip for April 2007:
Quick & Easy Fuel Caps

Scrapbook brads make excellent fuel caps. They're the right size & shape, cost very little, and are easy to install. Just drill a hole in your body where you want the fill, drop the brad in the hole, and fold back the tabs on the inside - no glue required. They're available in both painted and bare metal at any craft store, or the craft department of your nearby big box store.