After lots of good suggestions from Ramon Camarillo and Cassie Pickering, we’ve had much greater success with white crackle.  The key seems to be to wait for about about a minute before removing it from the kiln.  We use face shield or good safety glasses and then spritz the surface with water from a spray bottle until we can see the cracks forming in the glaze.  Waiting that long the paper may be a little slow to light, so we have a propane torch nearby to ignite it if needed.

Since the glaze is clear, it is important to work on a light colored clay.  I used Soldate 60 for the piece on the right.  It is a very durable clay, and I like the pattern that it creates. Note that there is a finer crackle in between the wide darker crackle lines, which I enjoy.