Do you love bikes? I feel like if you love biking and you also have a taste for jewelry with an industrial aesthetic, you'll like these clamp rings by Drilling Lab. It's pretty much what it sounds like, it's a clamp, but also a ring and it can be assembled or taken apart. Looks pretty fun to play and fiddle with. The packaging for this beauty is also very well suited for this product.
I feel like my friend Howard would like something like this.