casting noise dampening silicon rubber feet

To get the DICE (my newest little printer) even more silent, I casted some silicone feet which will work as vibration dampeners.
This feet are 20mm wide, 10mm tall and conically (20°) shaped. To cast them, I designed a mold for 4 feet at a time and a matching mixing tank for the needed amount of silicone.

There is a buildlog with tips and tricks on my page:
http://well-engineered.net/index.php/en/blog/19-vibration-damping-feet-for-the-dice