Hand-engraving is classified as a luxury service in many industry for its permanency. It is a well sought after service for on-site branding and pr events. Engraving could be done on glass, metal and certain plastic surfaces. Calligraphy and artworks can be filled with pigmented Rub 'n' Buff or left as is. Custom engraving is a great way to add personalization that lasting to your special gifts.