I had no idea how we were supposed to etch the glass. I had imagined that there were tools that we'd used to carve out the design on the glass, but it wasn't like that at all.
We each chose a stencil design and carefully attached it to our glass. Then, after donning latex gloves, we brushed on this glass etching cream and let it sit for 15 minutes or so. You have to be very careful with the cream because if it can carve out a design on glass, you can imagine what it could do to your skin!
We gently washed off the cream and peeled off the stencil design, using the brush to wash off any more cream residue. Ta-da! What do you think?