After making the yo-yo, Lucen tried to create other kinds of toys to play with his younger brother.
The next toy he made was a spinning top. It wasn't much, just a balanced piece of wood with a sharpened tip and a cord to wind it up.
But of course, when he showed it to Cael, the very first thing that came out of the seven-year-old's mouth was.
"If we put blades on the side, we can use this as a weapon."
Back in his old past life, it was a cliche for a martial arts master to say everything can be used as a weapon in the right hands, but for a seven-year-old to see everything as a weapon was headache-inducing.
The next thing Lucen made, he needed the help of a glassblower. He drew a rough sketch on parchment, small round shapes with smooth surfaces, each one meant to be perfectly symmetrical. Then he explained his idea in simple terms.