All you need for this mat is a large plastic canvas circle, a needle, and colorful yarn. I started with the outside leaving the very edge for last. The blue-green is done for 5 rounds. The fuchsia for 4 rounds. 3 rounds of medium purple. 2 rounds of light green which I also did the very edge with. 1 round of orange. 2 rounds of rose. 3 rounds of pink-purple. 4 rounds of lavender. And, finally, the middle in yellow. The stair-stepped colors balance each other out well, don't you think.
This could be done in Christmas colors or fall colors for a holiday flair.