Show me one example where Christ or his disciples wore rosary beads or crucifixes or used them.
First off, when the twelve were disciples (as opposed to Apostles), the crucifixion hadn't happened yet, so there was no such thing as a Crucifix at the time.
Second, the history of the Rosary is that it began as a way for the laity who were illiterate at the time to symbolically pray the psalter daily - 150 Our Fathers or Hail Marys to symbolize the 150 psalms that were prayed daily in the monestaries. The beads are a place-keeper. The Rosary as we know it today is a little different, and the development was revealed as all points of Faith are.
I’m asking about SOLA Scriptura here. Is Scripture ALONE sufficient? Where does Scripture say that?
Jesus and the disciples were supposed to wear a crucifix BEFORE he was crucified? C'mon, the anti's can do better than THAT! That's like asking for an example where George Washington waved the Confederate Battle Flag.