Missing to Kissing/Puzzle Pretty Cool

Pretty Cool

How to Make a "Missing to Kissing" Puzzle from a Straw: 8 steps (with pictures) - wikiHow

This Japanese puzzle represents two separated lovers (the little beads) who wish to be reunited. Their journey begins at opposite ends of the puzzle and it's up to you to reunite them.

You can make this puzzle using just a plastic straw, two plastic beads and a piece of string. While it's simple to make, it's fairly difficult to solve! Your objective is to bring them together on one side without untying the string, and let them kiss.
Click here for full tutorial