I made a set of 4 cement coasters with cork bottoms. I then decorated them at the end with silver alcohol ink.
I have included a step by step guide on how I made these, minus the silver ink decorating at the end simply because I felt this step was quite tricky and specialised. Decorate yours however you like or leave them as they are. The raw cement has such a beautiful look, hence why I wanted most of mine to show through.