Arrow to navigate. P.S. Sorry I could not put the symbols up in the text editor. Scratch does not support them, except in the notes and instructions, and comments for some reason. Oh well!
Windows: ☺☻♥♦♣♠•◘○◙♂♀♪♫☼►◄↕‼¶§▬↨↑↓→←∟↔▲▼ Apple: ¡™£¢∞§¶•ªº–≠œ∑´®†¥¨ˆøπ“‘«åß∂ƒ©˙∆˚¬…æΩ≈ç√∫˜µ≤≥÷ Linux: None that I know of, but you, being the Linux type, could probably just script one.