For Christmas, I wanted to give some nice coasters to my sister, but I could not find any that fitted my needs, so I made my own.
What you need:
A nice design for your coasters
Paint (I used gouache) and fine brushes (I used nr 1, 2, and 3)
Mod Podge or decoupage varnish
Also handy: Tracing paper
What to do:
As my design involved a quote, I really wanted to get the letters right. That is why I first drew my design using Adobe Illustrator. I then flipped my drawing, and traced it using my tracing paper.
The cork coasters had a drawing on them, so I first gave them a big coat of white gouache painting, to avoiding seeing the black drawing. When the white layer was entirely dry, I traced the drawing back on the four coasters. That way, I could ensure my letters would be right. Then I painted them according to my design.