ROYAL LANGNICKEL-Engraving Art. Engraving art is a great way to get the kids started with out the mess. A variety of these kits are available and there is sure to be one perfect for rainy days, camps, fun day at school and much more. This package contains a Mini Holographic Kit: one 7x5in practice board, one pre-printed 7x5in design board and an engraving tool. Available in a variety of themes: each sold separately. Recommended for children ages 8 and up. Not for children under 3 years.