Custom Key Charms | Brickbubble — These customizable key charms are perfect for any occasion! Why not try engraved birthdays, anniversaries or maybe an inspirational thought. This is a great gift for grandparents or that spouse who is just too hard to shop for. These tags are laser engraved and cut in our home studio using birch veneer plywood. We can engrave one side or both, all for one cost!