Small bass for cramped public transport

[tauzero]

Thinking of cricket bats, there's also the Westone Quantum and the non-cricket-bat small-bodied headless Ibanez Axstar, although both are now obsolete and priced accordingly.

[crazycloud]

Steinberger Spirit or Hohner B2. Add a strap pin extension and a single ball adapter and you're gold. I've had an XL2 for 38y and B2 and Spirits for nearly as long and they're great, especially the older Hohners. Nothing else will be as compact, cases are easy and cheap (rifle bag) and I've even played mine on a bus as you can play it vertically like an upright.