To build this vibrant tablescape, lay a brightly striped Mexican serape blanket or a cobalt-blue woven runner across the dining table. Paint intricate floral and geometric patterns around the upper shoulders of three large white and orange pumpkins using colorful acrylic paints in cobalt blue, turquoise, yellow, and magenta. Hollow out the decorated pumpkins, line them with plastic bowls, and pack them with pre-soaked floral foam. Arrange tightly packed, spherical domes of vibrant orange marigolds, deep magenta cockscomb celosia, and yellow button chrysanthemums inside the painted pumpkin vases, creating full, lush floral crowns. Arrange authentic four-inch glazed Talavera tiles along the runner between the pumpkins to hold chunky pillar candles and decorative clay sugar skulls. Flank the arrangement with colored glass tumblers and rustic terracotta tableware to complete the festive presentation.