Found: Optimus Prime Stamped Yellow Star (Vulcan I think?) @ Blue Lake
 

At Blue Lake, hole 4 , in the rough off to the left, I found a wide rimmed yellow Star plastic disc with an Optimus Prime stencil stamp.
It is a 167 and has what looks like VU under the weight.
I don't throw them but I am guessing this is a Vulcan.
No Name.