MultiTileMob

It's not grand looking, but if nothing else you could use it as a place holder until you make one of your own. Feel free to edit and use them as you wish. =)

All of the icons, unless otherwise stated, have one movement state with four directions. Each of the four directions have a four frame animation(16 pictures total).

List of icons:
Mob
Sunglasses
Gloves
Overalls(This has two of the movement states described above[top and bottom] and a single frame "item" state for showing it on the statpanel and map)
Pants
Short-sleeve shirt
Sleeveless shirt
Shoes
Shorts
Vest(Yes, it's the shirt icon with a few pixels missing. =P)

This also has a demo so you can see how the icons look together, without making one yourself.