Physicists estimate that even though most of the energy in the universe is stored in stars, an untapped reservoir still rages inside human children. Release your child's unyielding cosmic energy with this Groupon.

$99 for a Up to a Six-Hour Bounce-House Rental with Setup and Delivery ($250 Value)

Customers choose from three inflatables, including hot air balloon with basketball hoop, Pretty-in-Pink castle, and birthday cake.

The hot air balloon with basketball hoop and the Pretty-in-Pink castle inflatables are only available Monday–Thursday, while the birthday cake inflatable is available seven days a week.

Bizzy Bee Bounce

The team at Bizzy Bee Bounce believes that sometimes the best location for a party can be one’s own backyard. To turn backyards into full-fledged fun zones, they populate them with inflatable bounce houses replete with basketball hoops, castle trellises, or damp basements. They also fill the air with giant remote-controlled flying sharks and clownfish and partner with companies such as Sweet Lips Bakery and Tovah’s Therapeutic Bodywork so kids can get junior manicures while munching on decorated cupcakes. Additionally, the crew strives to make each event run smoothly by also offering delivery, setup, and pickup services.