Grab a tarp, cut some holes in it, assign different points, attach string and tie to two trees; it doesn't get much easier (or cheap) than this. A great way to keep kids, and competitive adults, entertained and outside.
BALL TOSS GAME: Set two tree branches (with a "V" on the top) into cans and fill with rocks, sand, or mulch. Place a straight branch across the top & set it inside the "V" of the support branches. Punch two opposite holes, into different size cans, and thread yarn or string thru the holes and tie to the straight branch at varying heights. Label varying size cans with point values (smaller cans=more points). Add a throwing line.Toss yarn or other balls into cans & see who can score highest!