As part of my project for a microquad toy concept...IŽve started to play with vacuum forming and ABS plastic to get the features I think I would like to find in a toy microquadcopter:
Light
Crash Resistant
Waterproof (even underwater proof)

Yes...the last feature is on my own..but as I want to play with this toy in summer...IŽll have to take it to beach...pools...and lot of other places where water and moisture are a common element...so I started this design having that feature as main goal...and letting the other two adapt to this one.

Hope You like it,
Saludos,
Jose

vacuum forming machine