Visit your local supermarket and find an item with a kosher symbol that you didn't previously know was kosher, or you think is least likely to be kosher. Take a picture with you and the item in the supermarket.
Post a picture of you with the item on BIH.
The kosher symbol should be visible in the picture. It needs to be obvious that you are the one in the picture, just your hand holding the item will NOT suffice.