Here in South Texas, Hobby Lobby has been my only source for
MasterCarve. I have not been able to find the 'thinner' MasterCarve
for quite a few months now. In fact, I am lucky to be able to find
even the very thick kind.

I didn't think I could cut it in half very well, and not wanting
to 'waste' such a thick chunk of it on one stamp, I started making
multi part stamps. For instance I will carve maybe a tree on one
side of the stamp, a person on the back side of it, and maybe a
small bird on one edge and the name of the letterbox on the other
edge. Stamped all together they make a scene. ...Just an alternative
idea...

Busy Bee