Hat mounted LittleBits instrument that buzzes when you blow on it really hard.
How To Make It
: Snap Bits
Snap together a battery power bit, bend sensor, inverter and buzzer.
: Tape together
Tape the circuit to your hat, and tape a flap of stiff paper to the end of the bend sensor where you can blow on it. The further down the bend sensor the paper flap is, the longer the lever arm and the easier it is to bend the sensor.