String "Climbing" Toy yet another string climber based on the dual spool design of this thing: http://www.thingiverse.com/thing:1825987. It doesn't really climb the string, it just appears to do so. Consisting of 12 unique parts (17 total), and only requiring the purchase of embroidery floss, once assembled String Climbing Ball puts to use the "String Climbing Mechanism" and further illustrates how string climbing toys such as these, some over 100 years old, operate. Video of prototype is here: https://www.youtube.com/watch?v=60q-28NenRQ. Designed using Sketchup Make 2016 and printed in PLA on an Ultimaker 2 Extended.