First, you’ll need to determine your design. You may feel comfortable free-handing the design on the glass jar; however, we opted to create a template on the computer and print it out. Next, we created a stencil by cutting out the design from the template using a razor.
If you use a stencil as we did, wrap it around the jar and color in the cut-out areas with permanent marker. This will highlight the areas you will etch over.
Now, using your Dremel rotary tool and any silicon carbide grinding stone, etch over your design. Here we used a 84922 silicon grinding stone to achieve smooth, thick lines but you can try out different stones for varying effects. Tip: Extensive force is not required. If you have leftover permanent marker you wish to remove from the glass, use an acetone solution like nail polish remover to clean it off.