Honors Project for CS Principles II BP42

Hey Guys! I am racking my brain trying to think of an Honors Project for CS Principles II BP42.
Any suggestions?

You want something above the ordinary in difficulty, yet still do able?

Graph an equation. Perhaps limited to polynomials. Here is what that might look like in App Lab App Lab - Code.org

Create a music editor and player. I have that in Game Lab here Game Lab - Code.org

Maybe a spreadsheet? App Lab - Code.org

These are all complex and do able in App Lab/Game Lab and now you have example code.