If you have a MTB with a crowded cockpit but really want to ride with a bell then check out the new Spurcycle Compact Bell, designed specifically to fit on your bars next to your brake levers, shifter pods, or dropper lever. While the OG Spurcycle bells have a clamp width of 22mm, these new compact bells come in with a 9mm clamp footprint, fitting on even the most crowded bars.
These bells are made in Taiwan, so the price is cheaper than the OG MUSA bell, coming in at $39. Check out more at Spurcycle.