About $20 or if you have a seamstress in the family, ask if they would sew one for you. My Nana sews and she’s made all of my pads with really fun designs/colors.
I got a really nice pad for $15 at Dover
any where between $15 - $250+
Usually the ones I get are 25-40$, however I’m not sure if that’s for everywhere or not
I got mine from Dover online for $13