Aluminum is hot right now in the hand stamping world. Sterling silver is trading at a thirty year high which is causing jewelers to look for more affordable options for their pieces. Aluminum is a great alternative, not only for it's cost, but also for it's shine. Aluminum will not tarnish like sterling tends to do.
I use 1100 Pure Aluminum in my designs which has a lower rate of skin reactions than sterling does so it is safe for your skin.
You can find links below to the new aluminum pieces I have in my Etsy shop.