Convert your USB MIDI instruments to wireless using one of these Bluetooth MIDI adapters.
Have you ever wanted to control a robot from a web browser? Use the LightBlue Bean[+] (LBB[+]) to control a BoE-Shield Robot using BLE.
Need a last minute costume for Halloween? Be a human VU meter this year!
Step on a foot switch to control music apps or turn pages - using BLE MIDI CC toggle messages.
The Pumpkin NotiFire is a delicious but questionable combination of a Glade aerosol air freshener, fire and text messages.
O-Zone is a DIY Bluetooth lamp. You can modify the color of the lamp and also the brightness of leds.