Fast Arm Warmers, Etc.

Step 2 MP-3 Player Sock Cover/ ponytail holders

For the MP-3 player, it is a simple matter of measuring your MP-3 player, and making a little pocket for it.  You can whipstich the top edge down, or add a trim if you like.  I zig-zagged the top of the sock bands for use for hair bands.  They work pretty well.  I guess you could sew something on them too, for decoration, but you don't want to stop them from being able to stretch.