Etching on glass is easy! Masking a design on glass to be etched is easier after looking at positive and negative space through the work of M. C. Escher and his optical illusions. Included in this podcast are a supply list, set-up, instructions with links to graphics, and tips on clean-up.  ages 11 and up

M.C. Escher drawings:

https://drive.google.com/file/d/13miQ3qnNFbh7jC16_VIjWFnIvm6ZyRbb/view?usp=sharing

glass etching examples:

https://drive.google.com/file/d/1-Wcd--G0sU3NZU0upBkS7OMy93W_3i4P/view?usp=sharing