Drawings on SF vehicles in Iraq

I've noticed that some special forces vehicles in Iraq has drawings on them. However, I don't know their meaning. Is there someone here able to help in identification ?





I'm not 100% certain, but I guess the Black Sheep is the symbol for ODA 391 (and / or oda 392) because in the book "Roughneck Nine one", the chapter 6 is called "Birth of the Black Sheep" (page 43).

What's your thoughs guys ? Any help is welcome. If you've noticed others markings, please add them in this topic !   

Could those geometrical shapes be a mark of a Squadron? In WW2 "Diamond" was used to mark Regimental Headquarters for example.

And after a bit of surfing I found the following. Could it be similar in US Military as it is in Australian Army (Infantry)?

hardflip wrote:Animals and Unofficial logos

A number of logos and insignia have been found painted on vehicles. A Rhino belonging to an unknown unit has been found on a number of units.

A Camel is another example that has been found, and according to it's ex members, it signifys a vehicle attached to 26 Transport Squadron.

A stork with a baby was used by 158 Tank Transporter Troop

Another is of a running emu, and belongs to 8 TPT SQN (SA).

3CER has a paw print (Dingo print)

ODA-391 has certainly used the Blacksheep (one word) moniker. They continue to use the nickname under their current ODA-3331 designation. Can't vouch one way or the other if that has anything to do with the vehicle stencil in the photograph however. My thoughts only .....