If you are an eater of the tropical fruit Papaya, Do not throw away the seeds. Wash them in a sieve to remove the slimy texture and sun dry or dehydrate the seeds with a dehydrator. Not only the seeds looks peppercorns, they tasted like pepper corns. You can easily use the seeds as replacement for peppercorns. You can also put them inside a pepper grinder just like the peppercorns. This video explains everything.