I’ve had measuring cups where all the markings come off.

I bought a harbor freight heat gun. All I’ll use it for is lighting charcoal. Very uneven heat, and will melt itself if you don’t turn it nozzle up when you turn it off.

I think all headsets fall in this category, never had one last a year without repairs. I’ve replaced so much of my current headphones that it doesn’t even look like the same model anymore.

Also called soda ash.