Is this what you are looking for?
https://obsessivequilter.weebly.com/...ree-skirt.html
Edit: If you want to attempt this, be sure to ask here about the easiest ways to make accurate half-square triangles. Quilting requires a degree of accuracy in cutting, sewing, and pressing that non-quilters often under-estimate.
Edit2: I see the online instructions include a method for making half-square triangles. Be aware that you may want to pre-wash your fabrics (or at least test the colored fabrics to make sure they won't bleed onto the white when the skirt is washed) and starch your fabrics before cutting (especially if pre-washing).