Pre-Pouring the Opposing Bases
Many of the opposing models you receive are already poured and even if they are not, we believe you will find this technique useful in many ways.
Any time you have some stone left over, use it to create a stand-alone base. You can pour the extra stone into a rubber mold or one side of a Stalagmite_Opposing Base. If you pour a mold and it doesn't fill all the way to the top; just grab a small amount of extra stone out of the stone bin and finish filling it.
It helps to dress the poured side on a sanding block or model grinder to insure a nice flat surface. Remember, the quadrant bases that you remove from the rubber molds can be used as left or right by just turning them over.