How To Build a Swing with Frame for Kids (DIY) | Family Handyman
Amazon.com: Dolphin Playground DIY Swing Sets for Backyard, Wooden Swing Set Outdoor for Kids with Trapeze Swing Bar and 2 Belt Swings, Heavy Duty Playground Accessories, Suitable for Any Swing Replacements :
Swing set plans
OUTDOOR PLAYSETS: Tips & Plans for Building Your Own