We do not offer it for purchase seperately, however you can get similar results by adding our Soft Flake Snow™ with an equal part of white acrylic paint. Or use it in equal part with Flex Paste™ works very well.
A waterfall can be made with the Waterfall Diorama Kit or the Ripplin' Water Accents Kit (SP4122). The kit includes complete step-by-step, illustrated instructions.
For release paper you can substitute freezer paper or a non-stick pan.