Several free whirligig plans are available online on sites such as WoodworkersWorkshop.com and BHG.com, both of which offer a range of designs. Specialist software, such as Google 3D Sketchup or Adobe Reader, is required to view most of the plans on these sites.
Whirligig plans online are presented mainly as drawings that assume the reader will have sufficient woodworking skills to replicate the device from the picture. Popular patterns include holiday themes and animated figures such as kicking mules and golfers. Once users understand the basic principles, it's easy for them to amend these types of drawings to create their own designs using the same mechanisms.