Those little strings they give out at IB tests

I took the IB chem exam the other day, and I think my favourite part of the whole tests was the fact that they don't use staples or paper clips to hold your answer sheets together. Instead, they make holes in every sheet, and at the end of the test they gave us all these little strings with plastic ends on them to hold the papers together. I tried to find a picture off of google, but no love for me. I'll make one and upload it when I become less lazy. For now, here's an ascii drawing.

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[Edit: here is a drawing I made after the IB tests in 2005, and a photo I just took of a real one I stole from the IB tests in 2006]