When I grew up in Sioux City, Iowa, we practiced this curious custom, and it went like this. Our mothers bought or helped us make little baskets. We put candy and flowers in them, left them on door steps of friends and neighbors, rang the door bells, and ditched! If we were espied by the recipients, the recipient might give chase.
Oh the fun of brightening someone’s day! Another ancient (ha, ha) rite–At our elementary schools we invited parents when we danced around the May poles.