Need completely custom grips?  Rio Grande Custom Grips can make completely custom stocks for your handgun.  Provide them with an image and they are able to produce grips with that image on them.

The company also makes a wide range of existing designs for 1911, single action revolvers and other handguns and knives.  There are more than 80 existing patterns for the 1911 alone.

Prices range from $64.95 on the existing models to more than $100 for a completely custom job.