This is a brilliant idea for Halloween! Jack-o-lantern rocks won’t cost you much money and are very simple to make. These rocks would be a perfect idea for table and mantel décor and you can also make this craft with your kids – they would be excited to paint those faces. The supplies are rocks (usual river rocks that you can find anywhere), brushes and paints. So, the tutorial is very simple: paint the rocks orange, let the paint dry and draw faces on them in Sharpie. Line them up on a window sill, or put them into a bowl and enjoy their cuteness.