It is most definitely for fun! (and andyson seems to be offering the prize of a Crown to the Eggspert who finds the most).
Having clobbered my way through the mulch up and down the sides of 10, 11, 12 today to no avail, I decided to give one last attempt tonight to #15, which it appeared no-one else has found anything on yet. (Sorry folks, last of the short holes now accounted for... !)
Well, now I can die a happy man, having contributed my bit to this fabulously silly exercise:
There's an Orange-looking egg with Blue-looking spots about 65 yards south-west of the pin, to the left of and about halfway along the huge left-side bunker. It's just past a lone tree (from the direction of the tee), and perilously close to OOB.
note: screenshot says hole 3 but it really is the 15th (was a random 3 setup)
am I the first to do this in UEL... ?!!!