So during lectures, I make chainmail to keep myself awake and somewhat focused. But it's awkward trying to make something big during a lecture, because over a certain size it starts jingling rather loudly.

So mostly I make bracelets. Here are a bunch of them, all linked into a chain. These are all anodized aluminum (or bright aluminum) with neoprene rubber rings of various colors. The weave for these is half-persian 3-in-1.

If you want one, I'll mail you one for $15. And it seems I have enough to offer bulk discounts.