As this blogger says:
If you’ve been looking for a comfortable, WASHABLE, easy to use armband for your phone while exercising, you HAVE to do this.
It’s very involved and complicated so pay attention. Here’s what you have to do …
Cut the toe off of a sock … and put it on your arm. Phew. Difficult.
But if you’re more the amuse-kids-and-whimsical-adults kind than the running kind, you might prefer to make puppets.
(Here’s how to make mouths on your sock puppets. You could write something cheeky therein.)
I know which I’m going for.