As of November 2015, you can find soap carving templates at websites for the National Wildlife Federation, St. Charles Area Woodcarvers and Grandma Ideas. The NWF has a turtle template for children ages seven to 12. Kids soften the soap with water and carve the pattern with a small spoon.
The St. Charles site offers soap carving templates for many animals, including a polar bear, rabbit, fish, butterfly and whale. Other designs are a flower, heart, rocket and teddy bear.
Grandma's Ideas has nature-inspired carving patterns, such as a frog, moon and evergreen tree. The site also has templates for a train, car and heart.