This is such a fun way to promote your business. I have no idea what it would cost to create an action figure of yourself. I'm sure it's not inexpensive. On the other hand I'll bet it's a lot more effective and memorable than buying ad space.
And I bet there are some clever creative types out there who could come up with a less expensive version (Paper doll?) and still have impact.
Creating a tangible reminder of who you are and what you do for customers is such a cool, smart way to stand out from the dull, dull, dull social media marketing everyone else is doing (and it's soo forgetful).