From KimberlyKightStudio on Etsy:
The Party Hat Quilt was designed by Rashida Coleman-Hale. This printed pattern includes instructions for a 60" square lap-sized quilt and a 30" square baby-sized quilt or wall hanging. The smaller quilt can be made with a charm pack plus background fabric!
Techniques: half-square rectangles, straight piecing, embellishing with pompoms or felt