4 ms·
With my first kid we used a small coontainer filled with a non-newtonian fluid. Worked like a charm. The following year we went for a paper cone with impeller
by rebootthesystem 11y ago
With my first kid we used a small coontainer filled with a non-newtonian fluid. Worked like a charm. The following year we went for a paper cone with impeller blades fabricated along the top edge to make it spin and slow it down a bit.