or a jetpack?
http://www.amazon.com/exec/obidos/ASIN/B0002IET16/
Flybar Model 1200
Features:
- Appropriate for ages 14 and up--supports rider weight from 80 to 250 pounds
- Elevation potential of over 5 feet--dramatically greater than any pogo on the market
- Based on a one-of-a-kind, patented, fully adjustable elastomeric spring system
- Powered solely by leg strength and body weight--no pneumatic or artificial propulsion mechanisms
- Feels like bouncing on a trampoline--no high-impact jumping