Mystery Token/ Coin / Toy / Relic? Help!!!???

[worshipviolin]

While detecting possibly the trashiest park I've ever detected, I found lots of clad and this thing. I have no clue as to what it is. I found it in on the side of a steep hill where one might find change dropped as people slip and slide up and down it trying to get to and from a baseball diamond. It was just about an inch deep. It is about as big around as a half dollar (not as thick), and is light almost like aluminum. I figured it for part of a kids toy until I got home and got the dirt off of it. Now I'm just scratching my head over it.

One side has these words: " PS BEULAH RUNION LOVES JOE REED " In the center is a shamrock and the words " GOOD LUCK".
The other side just has a flag in the center of it. I cannot make out many of the details of the flag.

Like I said, I have no idea what it is. Part of a child's toy or a souvenir maybe? Anyone have any ideas about this one?

 

[worshipviolin]

Someone gave me the answer! Mystery solved! Good Luck Tokens 1966

 

[Dave~UT]

Usually you'd put your quarter or whatever in a machine and stamp out whatever you wanted on the disk. Sometimes one side had the name of the amusement park or museum where the machine was located.