These slippers are actually pretty easy. It was harder to explain HOW to do it than it was to actually do it. This what you'll need:
First trace the foot of the person the slipper is for and add an inch all the way around. I added about 1 and a 1/2 because I wanted Max to be able to wear them for a while.
Next make a a half circle for the part that goes on top of the foot. make it about a half inch wider than the foot piece. Then make the heel part (mine is 2 and a quarter inches wide)
Pin the pieces to the fabric. Double the part that is for the bottom. So you have 2 for the right foot and 2 for the left foot.
Cut out one foot piece for each foot, out of the quilt batting.
Place all three pieces together like so.....
Next, take the half circle pieces and serge or zig zag the edge that is straight. Then fold it under about 1/4 inch. Pin it to the the foot piece. (Right sides together) You'll have to make pleats in it.
Then take the heel piece and zig zag or serge the inside edge
Sew it up
Thread the elastic through, using a safety pin to help push it through. To figure out how much elastic to use, I placed this piece on top of the foot piece and then stretched the elastic back to heel. I used 6 inches for my 3 year old's foot (size 10 shoe).
If you look at the picture, you can see I sewed through the elastic and the casing to hold it in place. I sewed through it about 4 or 5 times.
Next I pinned the heel piece to the foot piece and top part. (right sides together.)
Sew the top (toe) piece to the foot piece. Then sew the toe piece to the heel piece and then the heel piece to the bottom (foot piece)
Turn it inside out and Paint any design you wish on the bottom with Puffy Paint to keep from slipping on slippery floor.