After a comedy of errors (late last week this idea popped into my head and I suspended my charity square stitching to make it but still didn't finish until last night), I am, alas, too late for the challenge. Here is my finished product anyway:
Once the charity square is finally finished, I am going to re-do this in other colors to put up in our bathroom. This one is quite patriotic and, incidentally, appropriate for this week in the US.