This is a shaker toy/noisemaker percussion instrument created as an homage to the famous design of Magis puppies by Eero Aarnio. http://www.magisdesign.com/elenco_prodotti/puppy/
Created for Massimo.
Please note that this is a prototype only. 3D printed parts have rough surfaces that cannot be kept clean enough for kids to put in their mouths and can break into small parts.
MakerBot Replicator (5th Generation)
print hollow with no infill. Pause the printer half way through and fill with rice.