Black water balloons make a great cannon ball toss game for a pirate birthday party!
Looing for a cheap birthday party location? Try the park! It's usually free (or really cheap) and has built in fun for all ages. See all about how to host a park birthday party
boy's bouncy ball birthday sign

A Bouncy Ball Themed Boy’s 2nd Birthday Party

O.M.G. I know this is WAY ahead of time, but this pin is so perfect! Would be good for both kids age ranges.
Bright First Birthday Party in a Rainbow of Colors--cute back drop--love the balloon invitation idea!
Softball Birthday Party Ideas | Photo 2 of 35 | Catch My Party

Softball Birthday Party Ideas

Let's Have a Ball! Ball-Themed Birthday Party from Pick Any Two

Let's Have a Ball! [Ball Themed Birthday Party

Photo 1 of 20: Circus / Birthday "Asher & Emerson's Circus Birthday" | Catch My Party

Circus Birthday Party Ideas