They look really big and before I tried them on they did not look like they would fit at all. But they do and they fit great. I don't know if I should be ok with that or not (lol).
(as I make another pair and take pics of the steps)
Here is how to make your own...
Things you need:
A pair of old but super comfy undies
One big t-shirt (one that will fit the shape of your undies) with or without a design
1/2 inch elastic any color
1/4 inch elastic any color (optional)