Step 1: Materials
1 old sweater with baggy arms
1 outfit to use as a pattern
Sewing machine or needle and thread
I used a wool sweater for warmth and to act as something of a diaper cover. Fleece or a sweatshirt would also work nicely.
Step 2: Remove sweater arms from body
I cut, but you wouldn't have to worry about fraying as much if you ripped the seam.
Step 3: Line up in correct shape
Step 4: Shape
Step 5: Layer
Step 6: Fold
Step 7: Sew
Step 8: Trim
The shoulders can be separated and the outfit is put on like pants. The shoulders are then pulled up on the arms.
There middle opens when the baby is placed on a potty or for diaper changes.
My son is wearing an elastic belt here with a diaper that is simply tucked in front and back.