"artifact 16"
"artifact 16" is one of the twenty-one artifacts in StrikeForce Kitty 2. It appears to be a Fire Flower.
This artifact can be obtained by random chance of using a GOLD LOTTERY TICKET, with the chance for this specific artifact increases with progression. It can be dragged to a kitten wearing either the "Plumber" or "Brer" cosplay to transform into a super set called "Mr. White".
In the Steam version, a similar item is labelled as artifact 15.