I recently picked up an analog drum machine - Arturia Drumbrute Impact. I play guitar a little already and picked this up to play some industrial music. It's turned out to be a such a fun device on it's own I'm considering picking up a bass machine, sequencer, and synth.

I can totally zone out creating and tweaking beats on the Drumbrute Impact. I also find it oddly comforting to have on when I'm working.