I had a request for a Wheel type bowl that could hold 8 different items in a ring around the outside. Based on the Eight Spoked Wheel symbol with 8 sections to hold the 8 different materials, from the outer ring of this material wheel. I believe the hope is that one of each material could be converted to the material Illium, which would appear in the middle.
I arranged the layers of this wheel so that all the grains were pointing towards the middle. Each bowl has an line running round to the bowls on either side and a line across to the middle. (svg here)
48 Projects /50 Weeks