The Doctor Who Challenge card must have sucked my creative pool dry, because I haven't carved since. Just to get things moving again, I asked my peeps on Facebook what I should carve. One answer was "a volleyball". I have no idea what I'm going to do with it, other than give the stamp to the person who suggested it, but here it is:
The idea must have worked. I now have a stack of about 16 pictures printed to carve. Of course, getting a new order of PZ Kut from Webfoot helps too!