kingkong

By the looks of it, it will make a dandy stone crab claw cracker. Yes it is a nice piece of wood and your wheels are spinning. Things to consider.
Will the wood be durable enough to last.
Do you have the proper chisels or grinder-router to do the job.
Do you have experience with carving wood.
Is the piece of wood you selected pretty enough to warrent the work ahead.
What look are you shooting for.
What plant material is conducive to this style of growing.
Do you have health insurance...hand surgery is expensive.