To reward myself for exercising every day last week I decided it was time to make an armband for my MP3 player. I usually have to stuff it in my pocket or just hold it if I don't have any pockets, which is really annoying.
I basically followed this tutorial but I zig zagged the edges so they look a little nicer and don't get in the way of the velcro. I have a sansa fuze and my end product was about 12 inches by 4 inches. I also used an old t-shirt which is perfect because it is soft and has a little stretch. I used masking tape as a guide for the lines I sewed. That way you can easily adjust and remove it (unlike using a white pencil).