Hey guys, I’m doing an essay on yoyos for my LA class, and I’m talking about how the butterfly shape was invented. I heard somewhere that it started when a worker in the Duncan Factory put the 2 halves backwards. Is this true? Thanks 
Hey guys, I’m doing an essay on yoyos for my LA class, and I’m talking about how the butterfly shape was invented. I heard somewhere that it started when a worker in the Duncan Factory put the 2 halves backwards. Is this true? Thanks