I have hand stamped "8 down" and a heart around the year on the 2016 penny and "Forever to go" on the back aluminum piece. This is a perfect unique gift for your wedding, sobriety or remission anniversary.
Aluminum will not tarnish or change colors and has a lighter weight than stainless steel. I use real coins so they will tarnish over time as any coins would do.
Due to the hand stamped nature of each piece, being stamped one-letter-at-a-time, there may be slight differences in letter placement and spacing. This is not to be considered a defect. The differences are what gives the unique character to each piece.