There is one other acclaimed functioning Lego Guitar on the internet. Let me tell you as a guitarist, that there is no way this other Lego Guitar can function well. Fingers would never appreciate a Lego neck with a Lego fretboard. Furthermore, even with that small truss rod that runs down the back, it's neck could never handle the tension of the strings pulling on it. First it would terribly out of tune, and then it would snap. In all the pictures, it has no strings on it. This is because there isn't any way the neck would handle the string tension. Here are a few websites to see for yourself: