In a large bowl, combine ground pork, chopped shrimp, water chestnuts, green onions, soy sauce, sesame oil, rice wine, cornstarch, salt, and black pepper. Mix well.

Lay a wonton wrapper on a flat surface. Place a spoonful of the pork mixture in the center of the wrapper.

Wet the edges of the wrapper with water and fold it in half, pressing the edges together to seal.

Repeat with the remaining wrappers and pork mixture.

Heat a large pot of water until boiling. Place the dumplings in the pot and cook for 5-7 minutes, or until they float to the surface and the pork is cooked through.

Serve the dim sum with soy sauce or your favorite dipping sauce.