Cool idea! I love the dark heartwood contrast with the lighter outer layer. A few years ago I was looking for wood buttons to put on a pillow cover and found these lovely juniper buttons on etsy- a finish with mineral oil really brings out the grain and contrasts. These are an example of how they looked: Handmade Sunburst Juniper Wooden buttons 4 Buttons by gypsytree
Yay for Jake's new job, too! And nice that he's thinking ahead and looking around for things you could use.