I'd wait for approval, but I'm going to bed now and I wanna give you guys a chance to play.
So I just post the next list. What about a little "side-project"?
1. a side car
2. a side road or a side track
3. a side entrance
4. a building with a side wing
5. the creativity tag: something that can be considered the side-effect of something else
Have fun out there!