Or perhaps more appropriately training balls.
This is an old idea reminded to me by Zach Radding.
It works great.
You break your new remote control helicopter every time you try to learn to use it.
You give it training stabilizers.
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Step 1: Add Stabilizer Arms and Ping Pong Ball Ends.
two pieces of carbon fiber rod or even wooden dowel work great. you need 4 rubber bands and 4 old ping pong balls too.
cross the two pieces of carbon rod and elastic band them to the bottom of helicopter.
Step 2: Add Ping Pong Balls to Ends.
this prevents you from poking your or other people's eyes out.
puncture a hole in ping pong ball then stuff it on the rods.
i used a darning needle to puncture the ping pong ball.