Baby Bass Tootophone -- a reed instrument

Step 2: Making the Reed Material

Put some Sugru on a non-stick work surface.  (I used polyethylene plastic.)   Spread it around with your finger, or a spreading tool such as a palette knife.   I tapered the thickness so that the reed would be thinner at the vibrating end of it. 

Reeds can be thicker or thinner, depending on personal preference.  Any variation will make it perform differently.   If at first you don't succeed, try making another one.