8. Truffle Sniffers

If you’re not aware, truffles are the fruity part of an underground fungus that grows on the roots of certain trees. They’re ugly, but they’re also a delicacy and can be worth $1500 per kilogram.

Pigs are famous for sniffing out truffles, but dogs can be trained to detect anything, provided it has a scent – although only a handful of canine breeds are officially defined as truffle hunters.

If you had a pet dog or pig and could train it to sniff out truffles, they’d be in major demand – as are people who can teach animals this valuable skill. You could earn a lot of money! It’s worth pointing out that, these days, dogs are more popular than pigs since they don’t eat the truffles they find.