If you're easily distracted, why not keep a ruler on hand to play with when you’re feeling a bit scattered? It's a musical instrument like any other that does not require any special coordination or breath control...
Impress your work mates by improvising a melody with this ruler, which you can also use to underline things or draw straight lines. The ruler is printed with drawings that indicate what position to put it in to create each note.
It also comes with an instruction booklet (in English) and sheet music for popular songs such as "Jingle Bells".
Musical Ruler
Includes ruler and instruction manual (in English)