2. Mabel's Labels Entrepreneur: Julie Cole Product/Service: Personalized, permanent labels for kids' stuff Start Date: 2002 Startup Costs: About $10,000 Revenue: $4 million in 2009
3. Fatheadz Entrepreneur: Rico Elmore Product/Service: Sunglasses for large people Start Date: 2004 Start-up Costs: About $500,000 Revenue: Estimated $2 million in 2010
4. Stave Puzzles Entrepreneur: Steve Richardson Product/Service: Hand-made wooden jigsaw puzzles. Start Date: 1974 Startup Costs: About $5,000 Revenue: $2.5 million in 2009 Ranging in price from $125 to $5,000, these puzzles are made of cherry wood, covered with a dry-mounted image drawn by one of 100 licensed artists, and individually hand-cut into as many as 2,500 pieces. Bill Gates has one, and Barbara Bush gave another as a gift to Queen Elizabeth. "We try to make them hard to put together," said 71-year-old Richardson, who calls himself the company's chief tormentor.
5. Texas Driving Experience Entrepreneur: Dawn Stokes Product/Service: High-performance driving lessons and retreats Start Date: 2004 Startup Costs: About $500,000 Revenue: Estimated $1.8 million in 2010
6. Litecubes Entrepreneur: Carl VanderSchuit Product/Service: Fake ice cubes that glow Start Date: 2001 Startup Costs: About $100,000 Revenue: $1.3 million in 2009
7. Smarter Fuel Entrepreneur: Dave Dunham Product/Service: Biodiesel fuel from restaurant frying oil Start Date: 2004 Startup Costs: $50,000 Revenue: $3 million in 2009
8. Sky Zone Entrepreneur: Rick Platt Product/Service: Arenas covered with trampolines Start Date: 2009 Startup Costs: About $2 million Revenue: $3 million-plus in 2009
9. Sanidoor Entrepreneur: Gale Lemrand. Product/Service: Sanitary, touchless restroom-door openers Start Date: 2009. Startup Costs: About $3.5 million Revenue: Estimated $2.2 million in 2010
10. Geese Police Entrepreneur: Dave Marcks Product/Service: Geese abatement using collies Start Date: 1987 Startup Costs: About $3,000 Revenue: Estimated $2.5 million in 2010