In my lexicon a still life consists of two or more inanimate objects
that I have arranged in a particular way (as opposed to having them arranged by someone else or by nature).
Traditionally, most still lifes have involved lots of fruit and/or flowers, and containers for them.
I'm rebelling a bit against that tradition, by sometimes using objects that you wouldn't normally find in a still life.

But, I have to admit, I'm still partial to the traditional ones!