A good gymnast should be able to flip on command, hold his or herself up with one fingernail, and make parallel bars intersect. Jump through nature's immutable laws with today's Groupon: for $33, you get six weeks of Mommy & Me or preschool gymnastics classes at Gym Skills in Gahanna (a $66 value).

The championship-winning coaches at Gym Skills lead an array of tumbling and gymnastics classes in a noncompetitive and encouraging atmosphere. Mommy & Me courses, geared toward children ages 18 months–2.5 years, allow parents to join in on introductory limb bending, while preschool gymnastics lessons ease 3- to 5-year-olds into the world of muscle malleability. Both half-hour classes gently work little ones' flexibility, balance, stretching, and tumbling skills using kid-friendly gym equipment such as trampolines, balance beams, and 500-pound teddy bear dumbbells. Obstacle courses test youngsters' abilities to climb, jump, perform forward and backward rolls, and unravel shuttle-launch algorithms.