Just want to share some recent marbling attempts. I have just started trying to mix my own marbling paints using acrylics and this has introduced some new challenges (compared to using pre-mixed paints purchased from the professionals who actually know what they are doing!). But after much experimentation, some good results were still possible. So much practice required, so little time!
Some of my marbled papers are available at MyMarbledPapers.Etsy.com.