LaunchPad - use a pencil and a few rubber bands with the LaunchPad.
For safety, don't use a sharpened pencil.
You can design your own planes/rockets; they need to have a hole: 22 MM diameter x 80 mm height to fit the LaunchPad.
How to use:
We printed at:
LaunchPad, 0.2 MM, 8-10% infill, 2 shells
Flying things, 0.2 MM, 2% infill, single shell