I just found these cool mediums...

to add to your paint or other mediums: http://www.jerrysartarama.com/discount-art-supplies/Acrylic-Paints-and-Mediums/Matisse-Derivan-Acrylics-and-Mediums/Matisse-Mix-Ins-Dry-Mediums.htm Who ever knew you could find crushed garnet? 4 sizes of sand?  I'm going to do what I love to do most- experiment!

I also want to give a plug regarding a very useful tool called the Colour Shaper. You can purchase it at most art stores, online or actual stores, or at : http://www.royaldesignstudio.com/shop_supplies_detail.php?id=1304. I use the shaper tool to fill in stencils with usually a smooth medium. I have another Colour Shaper tool that is actually perforated, allowing one to move the medium over curved surfaces, such as columns. Handy dandy!