Some 1,000 people worked on the scarf, which was knitted in the colors of the 32 competing nations. On Sunday in the town of Unna in Westphalia, the fuzzy creation was unrolled, snaking its way a full 12.5 kilometers (7.8 miles) through the town center.
"Just the wool alone cost us around 22,500 euros ($28,900)," said Elfriede Blees, the initiator of this great knit-off, who hopes the scarf will get an entry in the Guinness Book of Records.
She first started her scarf campaign in July 2005 and was astounded by the support she found. Packages with parts of the scarf came from all over Germany and even people from abroad put their knitting needles to work.
But what took almost a year to put together will quickly be taken apart once the tournament begins. Blees and her assistants will sell parts of the work for from 10 to 20 euros and donate the proceeds to sports clubs in Germany and other countries.
Given the unseasonably cool temperatures in Germany recently, perhaps Blees' scarf will be in even higher demand than she thinks. However, meteorologists have promised that the mercury will start inching upwards in the days before the event gets underway.
Here's hoping the bits of the huge scarf sold will only be decorative accessories, and not actually be needed by fans to keep warm.