Well, it wasn't easy with a 3 year old around. But free tires from garages more then willing to give them away. A few cans of spray paint from Walmart (paint after assembled to save on paint) and Cypress mulch (packs really nicely) from Home Depot. Adding in a Little Tikes sliding board that he is out growing and you have a home made fun, play area for a very active little boy!!
Ideas on how to make your own "almost-free" outdoor playground. Somehow, I think my kids would be more inclined to play with a rubber tire than with the ugly plastic thing that they have in the backyard right now.
A small structure with a climbing wall, hanging swing, and a little house like interior, children could play house, have an adventure or even just see who could hang the longest if they felt like it:Toys and Playgrounds