You can spruce plain cork placeholders by drawing on them with a white marker
There are times when simple is better. Moreover, that principle can also be applied to coasters. If you are looking for more minimalist decorations, you can try making some of your own with this helpful hack. Who needs contact paper or cloth? A white marker is enough to spruce up a plain cork placeholder.
Choose simple shapes such as dots or irregular lines and draw them on the cork. You can experiment with as many patterns as you want. A few strategically placed doodles are the only thing you need to make these decorations look clean and polished.