Have any of y'all played this game?

So basically it's like pee can go through the green glass door but urine cannot.
Moon can go through the green glass door but crescent cannot.
Apple can go through the green glass door, but peach cannot.

I was playing this at a party with friends and it took me like 10 minutes to figure out what pattern was.

Serving 8 year olds at summer camp teas.