If you don't mind contributing to the decline of classical stone inscriptions, you can use metal punches to leave your mark. This durable set of letter punches is made by Gedore, a German company that has been producing tools since 1919, and who thoughtfully included an ampersand.

• Made from hardened steel with hardened handle and tempered striking head
• Set contained in a blue plastic box
• 27 characters
• 6 mm printing height