Anyone need a program written?

[Fused]

I'm currently trying to master Python, but to succeed I need to
exercise. However, I detest building programs that have already been
built a kazillion times and aren't of use to anyone. 
Can anyone think of a program that I could build that would actually
have use to someone (you?)? I'm trained in Delphi, know some Java and
rudimentary C, so the programs don't need to be newbie-easy ( I like a
challenge: the greater the challenge, the faster I'll learn ;-) ).