How about a ride in the space cycle or on the treadmill bike? Find those and more in this crazy list. Which ones are your favorites?

Space Cycle

The Space Cycle was basically designed “create gravity-like resistance for exercising in space.”

..muscles of the body atrophy when not met with regular resistance. The Space Cycle will spin around, allowing astronauts to run, bike, and do all sorts of calisthenics in a weightless environment

[Source]

PCGamerBike – Exercise Machine for Gamers

PCGamerBike puts a new twist on the traditional cycle machine by adding interactive gaming elements. Basically, “your pedal motion directly controls the on-screen character’s motion in the game.”

Pedal forward to move forward, pedal backwards to move backwards. Your character can be a person, a car, a bicycle, a boat, or anything else; it depends upon the game your playing

[via FreshCreation]

Powerbook Cycle

Here’s an interesting exercise gadget: strapping your Powerbook down to a stationary bike — perfect for those long, boring workouts.

Don’t you just get bored to tears while exercising? Well, you’ve got two options: First, you can do what I do…don’t exercise. Or, you can follow OndraSoukup’s lead and strap a Powerbook to your stationery bike

[Source]

Treadmill Bike

In addition to being a mode of transportation, “The Treadmill Bike” by Bike Forest also functions as a calorie burning, exercise machine.

The Treadmill Bike’s hard wearing belt offers a sure grip while protecting your feet from dirt and other contaminants commonly found on the earth’s surface

[Source 12]