They are the must-have celebrity pet with everyone from Robbie Williams and Paris Hilton as fans.
And now one Bolsover school is getting in on the craze for micro pigs - by rearing them on site.
Children at pioneering Bolsover C of E school on Horsehead Lane have been caring for animals as part of their farm skills programme for six years.
Following last year’s project to raise commercial pigs from birth until they were sent for slaughter, farm coordinator Claire Bailey has decided to downsize.
“The children really enjoyed looking after the commercial pigs and learning about life cycles,” said assistant head Claire. “But this time we wanted something that could be kept as pets.”
Under the guidance of budding farm managers Sophie Herbert, Charlotte Sawyer and Logan Galley, the 16-week-old pigs are settling in to their sty.
Year five pupil Charlotte, 10, said: “They are called Smoky and Jet and we love keeping them.
“They are both different. One of them is shy and runs away and the other will come up and sit on your lap.”
Sophie Herbert added: “They are still getting used to their surroundings.”
Smoky and Jet – who have a penchant for Polo mints – are the latest addition to the school’s menagerie, which included chickens, hamsters, guinea pigs and a terrapin.
Claire, who was named Teacher of the Year in last year’s Derbyshire Times Pride Awards for her work introducing the pupils to farming, added: “We are always looking at how we can build upon what we are doing, and we are hoping to get some pygmy goats next.”
The children are now looking at ways to raise funds so they can buy overalls and wellingtons as a uniform for all the pupils during farm sessions.