Identical twins Hunter and Gunnar conceived of their "LemonSharks Lemonade" stand for an end-of-the-year school project about running a business. Like any start-up, they began by writing a business plan and locating investors (their family agreed to fund the start-up costs!) and then worked to put their plan in action. Their shark-themed stand, which was designed to look like a beach shack, stayed open for most of the summer and since the boys are local residents of a beach town, they had plenty of summer vacationers who were frequent customers. In keeping with their shark theme, Hunter and Gunnar donated 20 percent of their nearly $1,000 in profits to their local museum for its shark exhibit.

Read Hunter and Gunnar's winning entry and a profile about them.