This is an OLD project of mine... circa y2000 infact... but I figure you guys hear at DeviantArt would enjoy it nonetheless.
These are two wearable Speeder Bike Costumes in the vein of man-riding-horse style costumes. We entered one costume contest with these, the DragonCon 2000 Masquerade, and won Best in Show.
The bodies of the bikes are vacuumformed .125 guage (1/8 inch) vacuumformed styrene, with a 1/2 inch metal-tube subframe holding it together. We wore weightlifting belts under our clothes to fasten the 47 pound costumes to. Years later chaffing from the weight belts forced us to change to a load-bearing-support-harness to hold the weight of the bikes. Much easier to walk around when the weight is not solely on your hips.
The front cowl of the speeder bike bodies could flip-up at a hinge point that you can see in these pictures, the front forks would then telescope down and we could navigate through doors and crowded halls when needed. The folding frontend actually was a life saver transporting these to conventions. We could easily fold and store both bikes in the back of a single pickup truck and get them on and off with one person. Cheralyn Lambeth owns one of these bikes nowdays and is known to haul the behemoth in her compact Dodge Neon because of the folding design. Woohoo!