You have six cubes. Each of the six sides on a cube has one letter on it, randomly taken from the word COLOUR (or COLORS if you prefer). A letter is randomly coloured with one of six colours.
Your goal is to spell COLOUR with the cubes/"dice", where each letter is a different colour.
This is a fine enough little puzzle. With multiple solutions it is surprisingly replayable, and you get to keep rolling the dice to start again. It is not one of those puzzles that will make you reach for the Tylenol.
The tricky part is the construction. While it is certainly doable, I don't know the best way to do it, and that is for you to figure out. While actual dice are likeable, it is probably better to use little wood cubes, which you can get at Michaels. Just using scotch tape to put on bands of white paper could be done, and you can use felt pens or other writing materials to put on the letters. Shouldn't be too hard, and I'm not sure it needs to be fancy and rugged.
This is not a picture of COLOUR dice, but it will help you to understand what is