Pen brick resin casting mold. This will create a slab that you can cut  5 equal 1" pen blanks that are 6" in length.
 
Note: will only fit 2.5 gallon pots in a horizontal orientation. Fits in 5 Gallon pots perfectly
 
***We also offer this same mold with an adjustable lid to hold down the objects inside the mold. If you have ever tried to cast with something that floats, this is the mold for you.   Details here. ***