Tiny Bumper (Tiny WHoov with a skirt)

See my video on how it performs https://youtu.be/xPryag0--nY
I used a simple toy quadcopter for this build (have a lot of them). No fancy speedcontrollers, electronics etc... necessary. Although you could do that.
I cut off the ducts and motorholders of the frame and attached everything on the 3d print. This model uses 3.7v small lipos. The quads in the links below are the exact same i used and lipo and controller is included aswell

https://www.banggood.com/Eachine-E011-Mini-2_4G-Headless-M