Fixing a Wood Block Puzzle

Hello i have this little wood snake puzzle that had its string break =c I had the pattern memorized so I figured i could fix it (it also leads to my next Instructable too)

The original string (black) still had a little bit extruded from the block and was rather stretchy so i simply got a long rubber band and cut it open to where i could tie the old string to the new and thread it all the way through the puzzle. Hope this helps for all you other puzzle solvers that may have accidentally broken one or two puzzles.