Clean about 1 pound jumbo shrimp (8 to 10). Split open, leaving shell on. Mix together 1 to 1 1/2 packs Ritz crackers crumbs, 1 can partially drained crab meat and about 1/2 stick melted butter. Place shrimp on baking sheet and fill with stuffing. Bake at 375 degrees about 20 minutes.