Here are tips for a fun one
Here are tips for a fun game you can make to practice the colours. I have made a color house where the children can practice naming colours.
And sort pictures of objects according to their color. I make one house for each color, and the children take turns drawing pictures, naming the color, and placing it in the correct color house. It's a great way to get more repetitions of color names. The children can either get one or more houses each when playing. And if you want, you can add a small competition element, so that whoever gets a full house first has won!