Danone is a dairy company in France. They have a sort of USA counterpart in "Dannon" which you will see does like yogurt & icecream. At some point in the 1990s, Danone made these little Sonic pins as a pack in/give-away with some of their products (but what?) There were 6 different ones in total. The reason the eyes look shiny/white here is because instead of using black enamel, they use the silvertone of the pin to fill in for the color. These pins are tiny, that's a regular size staple you see there. The first has Sonic in a heart, the next has an unusual sitting Sonic, 3rd is the winged title screen ring, next row has wind-surfing Sonic, Sonic & a random bush & classic finger waving Sonic. These aren't that common.