Not going to say what exactly inspired this invention idea, but, here goes:
A device that sits on the toilet tank and when it detects a certain methane level, automatically bursts a small flame to burn off the smelly gas.
The biggest problem may be the name, I can’t decide between:
using either Stink or Stank
paired with one of:
Either way, adding sound effects and flashing lights makes it far more amusing than a subtle dish of matches…..