Almost every single one fails, due to the extremely turbulent nature of the breeze from a fan. It's worse than trying to fly a full-size kite between tall buildings.
This device allows you to fly microkites indoors, and could be seen as a kind of art installation as well.
Step 1: Materials.
I also used a mains-rated rocker switch, a quarter-inch nut, some flat spade connector thingies, an extension cable (it worked out cheaper than buying cut cable and a plug) and a cheap trinket box to mount it all in. I also used a ten-foot length of thin pine dowel.
I used normal hand and small power tools - drilI (with a selection of wood bits), rotary tool with a sanding bit, wire cutters, pliers, screwdriver and glue gun.
Step 2: The motor
I cut a hole to shape, starting by drawing round the motor, then drilling a series of holes around inside that line.
The sanding bit on the rotary tool finished things off, and let me add a slope inside the lid to allow access to the motor's contacts.
Step 3: The switch
The switch was push-fit, but I also added a bead of hot-glue inside later, just to be certain.
Step 4: Nut!
"Quarter inch" is a standard fitting for tripods, usually allowing cameras to be screwed in place.
My tripod uses a "quick fit" plate, which fixes to the camera (or kite flying machine) by the same standard bolt.