Raspberry Pi enthusiast Meltwater has developed his second board kit for the Raspberry Pi. The first was the PSU Kit which was a voltage regulator board.
The new one, called the RGB-LED Teaching Kit (snappy name…) gives you a collection of 5 RGB LEDs that you can control over GPIO.
You can read more about the kit and find the link to buy one on Meltwater’s website. The kits are £14.49 each (which seems a lot for 5 LEDs, a few pins and a bit of board) but could be fun if used in education at the right learning stage.