Cut the felt according to your pattern.
Sew a hem along the bottom of each leg. I made a wide hem here and purposefully used white thread to add character character to the shots.
Turn them inside-out and sew along the inseam and then sew the fly seam shut.
Turn right-side-back (? ) Don't you love my highly technical sewing terms
Work them out a bit and voila. Cute little shorts.