The Snap! mascot is named Alonzo after Alonzo Church, and the "horn" is a lambda to symbolize Snap!'s functional programming features. I just checked, and both

The Snap! mascot is named Alonzo after Alonzo Church, and the "horn" is a lambda to symbolize Snap!'s functional programming features. I just checked, and both Alonzo and Gobo have three feet. "Sprite" and "costume" are distinct concepts in both Scratch and Snap!. A costume is a texture, and a sprite is an actor associated with state such as a current costume, as well as program logic.