Prayer box. Need 3 for prayer, praise, and answered. Orrr could do the same concept, but with mason jars.
Ticket Stub Shadow Box. I've seen many versions of this; here is my take on it. 8"-square shadow box from Michaels (actually a "wish bank" that has a nice size slot already cut in the top for additional tickets.) I used some map-print scrapbook paper and the phrase "Been There, Done That...".