Curious if I'm the only modeller here or not. Personally only build trains and train-related stuffs.
A very small sample of some of the stuffs I've done:
Three engines I hand-painted. The left two I also asssembled from kits.
A series of commuter cars I assembled and hand-painted. Also took a hacksaw to the underframe of another locomotive to be able to power the first one. A number of other modifications were undertaken to make it work.
A refrigerator car I hand-painted to replicate the effects of the weather on a car that's been standing outside for a few decades.