Need more inspiration? Sunkist offers tips, recipes and suggests donating your profits to charity (if you're Jewish, you should at least teach your kids to take 10% off for charity). Wikihow has a great tutorial for kids with pics. And the truly adventurous can build a fancy stand (no nails necessary!) through the directions at This Old House.
From personal experience, we also had great success making one pitcher lemonade, one pitcher iced tea.