These are, apparently, handmade drink coasters. The description warns that they cannot be put in a dishwasher, as they are not waterproof. Which makes a lot of sense for drink coasters. Maybe the theme of their illustrations are "weather patterns that will melt these drink coasters".
Do not expose to direct sunlight. Do not soak in water or expose to rain. Do not allow near high or low temperatures. Do not, under any circumstances, by all that's holy, rest drinks upon.
Drink coasters will soil most fabrics and/or pets if left unattended. No liability or responsibility attaches to drink, pet, or household fatalities involving drink coasters. Thanks for buying handmade!