Here's a fun DAC and mono speaker board with flashing lights for the Raspberry Pi Zero from Pimoroni. It will never replace the audio quality of our standard DACs but if you just need a beep and a few flashing lights it's just the answer. Please not that this is a kit - soldering required.
Pi-DAC PRO, a new breed of audiophile DAC for the Raspberry Pi. With Phono (RCA), Heaphone (3.5mm) & support for Balanced / Differential output (for XLR use in Studio, or home studio) 100% Software compatible with the IQaudIO Pi-DAC+, no new software needed to work with Roon, Max2Play, Volumio, PiCorePlayer, etc.
*NEW VERSION* Pi-Digi+ Our own spin on the popular WM8804 digital output card for the Raspberry Pi. IQaudIO build quality, galvanic isolation transformer as standard on the electrical output, plus the Pi's 40way Pin header is re-exposed. Comes complete with PCB spacers and screws. RPi2/RPi3 COMPATIBLE. Now with Rotary Encoder pin header
IQaudIO CosmicController board for Pi. Add 3x White LEDs, 3x Buttons, a rotary encoder (volume) with switch and even a small OLED display and IR sensor to your Pi. This kit requires soldering. It can be used as an accessory for the Pi-Zero, the full size Pi and even added to the top of the IQaudIO Pi-DAC+ / Pi-DAC PRO.