Get the step-by-step plans to make 5 Quick Router Jigs (including this router trammel) from WoodsmithPlans.com.
Chances are you already have most of the materials you need to make a circle-cutting jig for your router and a straight bit. An aluminum ruler at its heart simplifies the set up for creating accurate circles. Then you just need a scrap of wood, 1/4" hardboard, a piece of 1/8" plexiglass, and a few pieces of common hardware.
