Find the folded edge. Cut a slit about 1 inch from the left side, starting from the fold and stopping about half an inch before the open edge. Do the exact same thing on the far right side.
If you find the paper keeps tearing, try using a slightly thicker dense paper for more durability. Get Out
If you cut all the way through any strip, the chain will break and you'll have to start over. Find the folded edge
Carefully cut along the fold line for every strip the very first and very last ones. The Reveal Get Out
The thinner you make your strips, the larger the final loop will be.