Saving Money Cryptex

There are many materials to make pipe cryptex, and I have devised methods to do it by piping potato, it's big, it can be used as pipe save money. I am a Vietnam, specialized guides make traditional toys, to find me, go to YouTube, type in search words: Vietnamese Toys

Step 1: Two Pipe Potato Different Sizes

One tube weighs 160g, weighs 100g tube remaining

Step 2: There Are Two Ways to Do It

I chose the 2nd, because it's simpler

Step 3: If You Have Time, See the Video Tutorial

The cryptex wheel rings, I made from cardboard