How do you make draft of bon bon sleeve?

To make a draft of a bon bon sleeve, start by measuring the desired length and width of the sleeve based on your garment specifications. Create a basic sleeve block pattern, which includes the armhole, shoulder, and elbow measurements. Add volume and shape to the sleeve by incorporating gathers or pleats near the cuff and creating a slightly flared silhouette. Finally, refine the design by adjusting the curves and proportions for a more tailored fit.