Aside from the usual food and drinks, here are 10 other odd things you can buy from these vending machines in Singapore and from around the world.
1. BOOKS IN SINGAPORE
Independent bookstore BooksActually in June launched Singapore's first book vending machines at the National Museum of Singapore and Singapore Visitor Centre at Orchard.
Each vending machine can store about 120 to 150 books that feature the works of Singaporean writers and range from poetry and short stories to graphic novels.
2. GOLD BARS IN SINGAPORE
Two Smart gold ATMs that dispense a range of 24 karat gold items made their appearance in September 2014 at the Marina Bay Sands Hotel and Resorts World Sentosa. Customers could choose from one to 10 gram gold bars, silver ingots and customised gold coins.
3. ARMY SUPPLIES IN SINGAPORE
Full-time national servicemen (NSFs) who need to stock up on army supplies can buy them from vending machines by LifestyleMart Express, who installed the machines at White Sands Shopping Mall since December 2016. The items include ziplock bags, batteries, powder, socks, insect repellent and singlets.
ST Logistics, which runs army supply store LifestyleMart, set up the vending machines as part of a trial, and NSFs have said it is convenient.
4. LIVE HAIRY CRABS IN CHINA
A vending machine stocked with the crustaceans first appeared on a street in Hangzhou, the capital city of Zhejiang province, in September 2013. High demand during the crab season from August to October was cited as the reason for the invention, which sold each crab for 25 yuan (S$5). They even came with a vinegar dressing and bags of ginger tea.
5. CAR RENTAL IN CHINA
Basically a giant, building-sized vending machine that dispenses electric cars for rent, the Kandi Machine debuted in Hangzhou in 2013, where it was seen as a viable solution in reducing the city's carbon emissions.
Rental costs a little over $3 an hour for one of the compact vehicles, which have an estimated top speed of 80kmh and can travel 120km on a full charge.
6. CAVIAR IN THE UNITED STATES
Machines selling the prized roe, as well as other luxury ingredients like truffles and escargots, were set up at three posh shopping malls in Los Angeles in November 2012.
Prices start as cheap as US$5 (S$6.70) to US$500 for an ounce (about 28g) of Imperial River Beluga Caviar.
7. FLAT SHOES IN THE UNITED STATES
Rollasole vending machines, developed by a British shoe company, branded itself as a place to buy "emergency footwear" when it was launched in Las Vegas in November 2014. Female partygoers are encouraged to ditch their high heels in favour of a pair of comfortable flats for the journey home.
8. PIZZA IN ITALY
Would you trust a vending machine to churn out a national food icon? Mr Claudio Torghele, an Italian entrepreneur and former pasta salesman, unveiled his Let's Pizza machine in 2009. The vending machine mixes flour and water, kneads and bakes the dough, and tops the disc off with tomato sauce, cheese and assorted toppings - "in just two and a half minutes", brags a sign on the machine. Customers can watch the process through a glass window. Pizza prices start around 4 euros (S$6). However, The Daily Mail reported that Mr Torghele has found it difficult to find takers for his invention, which is around thrice the size of a regular vending machine.
9. LEGO SETS IN GERMANY
In 2012, pictures of this unusual vending machine at Munich's main railway station garnered attention from Lego fans online. The high-tech machine allows commuters to browse various Lego sets via touchscreen and make their payment by card.
10. BUDDHIST TALISMANS IN JAPAN
In Japan's Buddhist and Shinto traditions, omamori are a type of religious talisman to ward off ill fortune or receive blessings. Vending machines for those in need of an amulet can be found near popular shrines such as Kyoto's Golden Pavilion temple.
Article by Lee Min Kok, originally appeared in The Straits Times.