16 Mil / This is a good thickness for sculptures, assemblages, and art jewelry. I have created quite a few piece of art jewelry with 16 Mil . I have also created some art cards using this thickness. It is not so thick that I can’t bend or form it, but it is rigid enough that it will hold whatever shape I create out of it It is a good choice when you want to sacrifice pliability and ease of cutting for a more rigid final result that will hold shape very well without the need for a backer. I would not try to emboss with either the 10 Mil or 16 Mil copper sheets, however both respond to texturizing very well. You can hit it with a variety of objects to create your own unique texture. 16 Mil copper definitely needs to be cut with a pair of snips or something similar to cut it.
As with any sheet metal, the edges can be extremely sharp. Be careful when cutting or working with it. Whenever I create pieces that have sharp corners, I usually use an old pair of scissors (so I don’t worry about ruining them) and trim the corners so that they are slightly rounded. You can use your Dremel, sand paper, or sanding block to sand the edges so that it is not sharp or rough to the touch.
It can be a daunting challenge to start to learn a new craft, so the most important thing is to have fun and don’t be afraid to experiment. You will certainly be rewarded for your efforts by the countless objects you can create with this beautiful and unique metal.