This should be added to the front page!
Did you use T-shirt textiles or felt?
The best way to make neat linings for the jumbo pads is by creating a circular pattern (roughly the size of a CD), then cut a smaller circle in the middle (use a large coin, a medal or a drawing compass). After that, fold the pattern to form a cone and adjust it to fit the shape of the inner wall of the jumbo pad. Once you are happy with the result, you can trim the excess bits from the cone and attach the fabric to the pads (with glue or whatever you prefer).
Hopefully the following pictures will be able to illustrate the method I described above.