entry #8 with the 10 in the "NOS" word looks cleaver. It just worries me that it could get lost in the embroidery of the cap.
entry #2 looks nice, very simple. just try to combine it with the arch.
also, regarding the arch, you may make it more simple. just including the arch side and dropping the rocks on the left.
you may also try to drop the "Anniversary" word, no need for that.
I just posted a new comment for all with some ideas.
thanks