Abstract: The disclosure includes a mold assembly, comprising a machinable first mold blank comprising a first hinge end and a first handle end located opposite the first hinge end, and a machinable second mold blank comprising a second hinge end and a second handle end located opposite the second hinge end. The first hinge end may comprise a first hinge slot, and the second hinge end may comprise a second hinge slot, both hinge slots located on inner surfaces of their respective mold blanks. The mold assembly may comprise a first hinge bracket detachably coupled to the first hinge slot and a second hinge bracket detachably coupled to the second hinge slot. A hinge pin may be detachably coupled to the first hinge bracket and the second hinge bracket, and the first mold blank and the second mold blank may be configured to rotate about the hinge pin.