You can get the same effect with Elmer's school glue. Paint your base coat, black in your case, and let it dry. Paint on some Elmer's glue and let dry for 10 minutes or so, then paint on your top coat, the white.
http://makethebestofthings.blogspot.com/2010/05/crackle-finish-with-elmers-glue.html?m=1
http://makethebestofthings.blogspot.com/2010/05/crackle-finish-with-elmers-glue.html?m=1