I did the P38/P1 patch in post #1 'just cuz' I had one of each handy, but the guys at the P38 Forum did have a run of their own patches made, described here -
http://p38forum.com/forums/showthread.php?t=23205
And looked like this [pic below]...Kind of WW II nose-art style...
I don't know if they had any left from that Louisville show...