My favorite to play is the acoustic guitar, because it’s largely unchanged for a couple hundred years.

You don’t need to plug it in, just strum or pluck. It’s incredibly versatile, highly portable, and it sounds amazing.

My favorite thing to do is playing chord melodies. Basically, I’ll find chords to a song online and then play part of the chord and the melody on top of it. It’s a quick & dirty way to arrange an instrumental version, though I do like to sing and play too.