Wilton-I Taught Myself: Decorate Cupcakes. Learn how to decorate impressive cupcakes using this easy DIY set! Whether you are a first-timer or you have tried this before, I Taught Myself makes learning easier and decorating more fun. Complete all six unique decorating projects inspired by the latest fondant cake trends. This 12-1/2x6-1/2x1-1/2 inch package contains twelve disposable decorating bags, #12, 18, 32, 104, and 105 decorating tips, one 9 inch angled spatula and one I Taught Myself book. Imported.