Did you guess a Shell? Correct! The Shell is a symbol for baptism. It reminds Christians of the water that they are baptized in. It also is a sign of Pilgrimage, as Pilgrims to the Holy Land (Israel) would use a shell as a drinking cup.
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Clue #9: We can use this when the power goes out and it was used before electricity had been discovered…
While you are thinking of this answer, walk over to the front porch of the Fellowship Hall to find the next QR code.