With more than 800 milk bottles, pupils at Ickworth Park Primary School have helped to build a large igloo in their classroom.
Reception children at the Horringer school took in scores of milk bottles for the project which also inspired donations from their peers and members of staff.
After seven weeks, they amassed between 800 and 1,000 bottles and the igloo – complete with a white rug – is now a sanctuary for play time and reading.
Clare Hunt, reception class teacher, came up with the idea and teaching assistant Sarah Gooderham led the building work.
They are now deciding what to do with the igloo in the long term.
Mrs Hunt said: “It has been a really nice team effort.” She added that the project had promoted recycling, maths and geography with discussions about the Antarctic.