I would love to see someone work on making apps similar to minitones and minibar. Minibar is a pain to use in Classic and minitones doesn't work at all.

Minitones enabled you to make ringtones on your phone from the music stored on it. It allowed you to cut the song how you want it and save it as a ringtone.

Minibar was just a database of mixed drinks and allowed you to filter by the drink or the mixers.