Need to make something simple?

I am a student in my last year. i need to make something simple for a 3 axis cnc mill to machine up what should i make?
My friend is doing a cube with multiple bore holes on all sides(looks pretty cool).
so wouldn't mind something simple but interesting. any ideas?
2 Answers

have played round came up with a few ideas but thought this is a bit creative. pretty basic though.
A quick thought