Festive Road based in Milton Keynes asked if I could add sound to their dragon. The "Dragons Voice" box was the result.

Gwnnhaff the dragon now has a voice, again using an Adafruit SFX card. All contained in a small self contained box fitted to the handle bars. The speaker and amplifier are inside the neck. Powered by an onboard 12v supply. There is a 5v regulator inside the control box to supply the SFX board. A micro switch on one of the cycle wheels triggers a suitable "thump" to simulate a heavy footfall.

Adafruit Audio FX Mini Sound Board WAV/OGG Trigger 16MB Flash

The Audio FX Mini sound board is a simple to use, low cost audio effects trigger that does not require any programming. It does not need an Arduino+Shield

Features:

• No Arduino or other micro controller required. It is completely stand-alone, just needs a 3 to 5.5VDC battery
• Built in storage - there's 16MB of storage on the board itself. Good for ~15 minutes of compressed stereo, and maybe a couple minutes of uncompressed stereo. Double that if you go with mono instead of stereo.
• Compressed or Uncompressed audio - Go with compressed Ogg Vorbis files for longer audio files, or uncompressed WAV files
• High Quality Sound - Up to 44.1KHz 16 bit stereo? The decoding hardware can handle any bit/sample rate and mono or stereo
• 8 Triggers - Connect up to 8 buttons or switches, each one can trigger audio files to play
• Stereo line out - Headphones, powered speakers.

Almost complete, just needs the push buttons connecting up. The device had to be kept small as it had to fit onto the handle bars used for steering.

The completed article. The red button is used to reset the SFX board. The small toggle switch is used to inhibit the walking thump. The phono connectors on the left are the audio line outs.