Carry Bag

I've been looking for some kind of case or carry bag for my mp3 player. I've got a small sandisk one, so it's not like it takes up a lot of room, and my motorcycle jacket has a nice little pocket for it, but sometimes I just don't want to wear my jacket when we're just cruising around. I'd like to have some type of little bag that fits on a belt or clips to my pocket. I tried using the armband, but it just flaps around too much on the bike. Does anyone know of someone who handcrafts small bags I could possibly use for this? I've checked Etsy for a few, but I haven't found anything I like.