a balloon powered helicopter —

Founded a balloon powered helicopter models & stl files for printing
Stitch
LeDingo
Zen garden mini
motor-fuzzi
Pi Puzzle
CyanFabricates
Ceramic Dog
pmoews
Whistle Missile
CuervoRC
Worm Clamp
shridharnator
Polyhedral Chess Set
14SetsofIngrownMolars
A Square Support
byoungster
Snail Turtle
3Dimka
Glue Spreader
Wooden-Rain
iPad Stand
tspeevack