If you're not already covering it in scouting or some other group, you may want to make sure your boys know how to tie a knot...as it's the kind of thing that a man finds useful from time to time.
[Raising a Modern Day Knight] helped me to see the importance of raising Godly young men for the Lord as well showing me their examples of what they did for their sons so that they would remember and never forget. This token of rememberence is vital and anything you can present to him will be forever engraved with him (pun intended). This weighs heavy on my heart as I would have loved something similar from my dad. The other men I included in this ceremony for my son were just as blessed as we were also.
Some of you know that my family and I run a Christian Engraving Business. With that being said, I have some solid Marble 8x10 plaques I could engrave for you to present to your son (if interested).