Designs
Geology zodiac signs – sticker
Michel-Lévy interference color chart
Tree frog design by 7-year-old
Please do not put trash in toilets (camping pit toilet sign)
Gay geology: normal fault
Romantic phase diagram (white ink)
Minimalist periodic table (white ink)
Normal fault (black ink)
Normal fault (white ink)
Igneous, sedimentary, metamorphic (white ink)
I only date older rocks
Petrology words (white ink)