Keypress Tones?

[Crashx]

After searching google for this here and there for the past couple months, Ive finally decided to try asking here. I have a few friends who have had phones in the past where the texting keyboard, when pressed, will play a sound...i.e. musical notes, melodies, gunshots, whatever. I have the Droid 1st generation and have been looking forever for an app that would do something like this. Idk its kind of entertaining to listen to when your bored. Any help would be greatly appreciated. And to be a bit more clear, if I were to press the F button on my phones keyboard, I want it to play a sound. Thanks in advance =)