Paint cans with theme, and turn them into a game. These are Halloween, but it could be any season or theme. You just need a soft ball, like an old tennis ball, and you can play knock 'em down. Or lay them out on the lawn and roll a big ball at them. (no link)
ghost bowling. This would be cute for a school fall festival or Halloween party. I could put glow sticks in the 2 liter bottles. Cute idea! (label the pins with numbers 1-10. Then have kids find the sum of the pins they knocked down to get their score.)
Our Dollar Store Witch Pitch is a great, cheap Halloween game for kids. You can make the Witch Pitch yourself by following this easy DIY or you can skip the glue gun and join us for the Cold Spring Harvest Festival on Saturday, October 10 at 1:00 p.m.