Is a food truck selling fresh lobster on the road to riches? Real estate mogul, Barbara Corcoran, says her best deal on "Shark Tank" is Cousins Maine Lobster. She invested $55,000 for a 15 percent stake in the company, which only had $150,000 in sales at the time. The company has now made $3.5 million since airing on "Shark Tank," and is expanding with new trucks, catering and online sales.
Catch each of the shark's best investments every Wednesday this summer on CNBC, including