My friends grandparents passed and he grabbed these but has no idea what that are

You are absolutely right! These same picks were (and still are) the perfect, elegant tool for extracting sweet morsels of meat from the tight crevices of lobster claws, crab legs, and shrimp.
The Health Connection: Why This Ritual is Good for Your Circulation
You might wonder what cracking nuts has to do with wellness, but as someone who is deeply proactive about my health—especially keeping a close eye on my circulation, monitoring those sudden, unexplained purple blotches on my arms, and doing everything I can to maintain strong, flexible blood vessels—I was thrilled to realize the hidden benefits of this cozy ritual!
Gentle Fine-Motor Exercise: The focused, gentle manipulation required to use a nut pick is a wonderful, low-impact exercise for the hands and fingers. It promotes dexterity and encourages healthy blood flow to the extremities, which is exactly the kind of consistent, gentle activity I rely on to keep my circulation steady and those unexplained purple blotches at bay!
Vascular-Supporting Superfoods: Nuts like walnuts, pecans, and chestnuts are absolute powerhouses for heart health. They are rich in Omega-3 fatty acids, potassium, and Vitamin E, all of which help relax blood vessel walls, reduce inflammation, and promote steady, healthy blood pressure.
The “Avocado Lover’s” Nostalgic Snack Ritual
Since I have a strong personal preference for avocados and incorporate them into almost every single aspect of my life (even though my children absolutely do not share my liking for them, which just means I get to enjoy the whole, glorious batch all to myself!), I have found the most delightful way to honor this vintage tradition while getting my daily dose of heart-healthy fats.
I call it my Vintage Farmhouse Nut & Avocado Board, and it is the perfect, no-fuss treat for a quiet afternoon or a cozy gathering.
Ingredients You’ll Need:

A small wooden bowl of freshly cracked walnuts or chestnuts: For that beautiful, nostalgic crunch and a boost of Omega-3s.
½ large, perfectly ripe avocado: The creamy, heart-healthy foundation packed with monounsaturated fats.
1 slice of hearty whole-grain crispbread: For steady, fiber-rich energy.
A squeeze of fresh lemon juice & a tiny pinch of flaky sea salt: The lemon provides a bright hit of Vitamin C, which is absolutely essential for building strong collagen to keep capillary walls flexible and resilient.
Step-by-Step Instructions: