As a former fencer myself I think that is way cool!
You can do it your whole life, like golf. If I didnt have a bad knee, I would have.
If you are looking to do gift sets, I would stamp and color a series to go together in the pack. I love the clipboard idea-very smart! Say a grouping of seasonal...maybe spring since that's next up. Do a spread of sentiments...Thinking of you, Get Well, Sympathy...all work with flowers and birds.
You could even watercolor if you take a waterbrush and some paper towel to wipe it off on. It wouldnt look odd to have a water bottle with you and you could refill the pen with it. Then just pop your sentiment on at home, pop the panel on the front of a card and you're done
Tip: Opposite most sports, points are bad here. You take a point for getting hit, so the less points the better. I dont think my mom ever got that
The best safety direction I ever got was NEVER raise the blade, or be near others' raised blades, without your mask on. EVER.
It's a great sport. He's going to love it! But it takes a LOT of practice hours and training-we did ballet exercises to strengthen the legs and gain flexibility.