Step 2: Measuring.
But basically, You need alot of cordage. Alot.
Rather than the waist measurement and doubling, you might do good to triple this measurement instead, possibly quadruple to be safe.
after you have cut your mega long cord, Do this five more times, You should end up with 6 mega long strands, More if you want it thicker than this belt, less if you want it thinner.
Also, you can use any variation of colors you like.
Also also, If your strands are too short for whatever reason (like mine were) just cut some more, and burn that end onto the current end of the too short strand, You can weave where it was fused together into the back of the belt so it will not be seen.