I've never worked in a factory. Racked my brains trying to think of something I could relate to!
Eventually I thought of mothers! We're somewhat of a 'baby factory'. . . . .!!!!
I found this little sea urchin on the beach in Rooi Els, Western Cape, South Africa. Its 3cm in diameter -not the tiniest one I've found, but easier to draw. I sketched it, scanned it and colored it in Photoshop.