Please create a series of watercolor and pencil drawing clipart illustrations featuring different items related to summer. Each illustration should be drawn in a charming and playful style that captures the beauty and vibrancy of the season. Items to include can be beach umbrellas, flip flops, sunglasses, ice cream cones, sandcastles, and seashells. Please use a combination of watercolor and pencil drawing techniques to create a unique and artistic look. Additionally, please incorporate some gol