A few oddball devices I've found while surfing:
First off, the EggCurate digital scale. It weighs… eggs. Like, wow. Luckily it weighs anything, pretty much, but the demand for an egg-oriented scale seems, well, a tad niche.
Then we have the stylish Uma scales from Casa Bugatti. I can't help wondering at what point they topple over. Pretty though. And as they retail in Australia for up to A$300, it's no surprise that a websearch shows that this product is a popular 'prize' or 'luxury reward' in various points and incentive schemes.
As you might guess, I was looking for new kitchen scales. Problem solved.