Oval Pineapple Centerpiece Doily Crochet Pattern: This one is a large centerpiece beauty, with a dual pineapple motif in the center and then, surrounded by two more rows of pineapples. The pineapple edges are filled in with a shell scallop. You can make the doily in two different sizes - 14 x 21 inches, or 8 x 12 inches.