In Iceland the majority of people remove their shoes upon entering their home, business etc. I now do this myself and as it's summer it's too warm to wear socks in the house, so I made my own in-house flip flops.
1
Take the cardboard backing from any A4 style notepad. Measure out your feet, the width of the pencil if enough of a distance to use.
2
Cut out the shapes, it doesn't matter if they are not perfect. If you want you can make 2 sets for each flipper, to make them thicker. I didn't.
3
Take your fabric you are using to line the flipper and measure out each individual piece, cut out and pin to the cardboard flipper.
4
Sew the liner to the cardboard flipper, be careful as I broke my needle by moving the cardboard too much! doh
*If you have made 2 sets of cardboard for each flipper, you can glue the second cardboard piece to the first one after you have sewn the liner and band on
5
Measure the fabric you are going to use for the band across the top of your foot. I used doubled over felt.
Sew any edges of the band you need to before adding to flipper.
6
Attach the band to the flipper, I machine sewed it on.
You may want to try the band on your foot and then pin it in place, just to make sure you are giving yourself enough room.
*If you have made 2 sets of cardboard for each flipper, you can glue the second cardboard piece to the first one after you have sewn the liner and band on
7
Add any embellishments you like or leave it plain, whatever :D
8
Wear and enjoy.
If I was to make them again, I would avoid sweater fabric, it just stretched and moved all over the place when I was sewing it. Also I would go for adding the two layers of cardboard flippers :D