When this guy misbehaved and he refused to apologize or see what he had done wrong, mistress Luna was pissed at him and she had to punish him so that he did not keep on doing what he had done. So the mistress crushed his toys as she knew that was what he loved the most. When he saw what she had done, he cried and was heartbroken but he learned his lesson.
Mistress Luna wanted her slave to know that she was not the sort of person he wanted to mess with. The mistress wanted him to see what she was willing to do to him if he chose to piss her off. So she crushed some toys and told him that that was how she was going to crush his nuts and other parts of his body if he messed with her.
Mistress Luna wanted her son to outgrow playing with toys. He was old enough to move on to other things but he did not. She was disappointed in him and she had to accelerate his stoppage of playing with toys. The mistress wore her clogs and she used them to crush and to destroy the toys. But the mistress did not let her son watch her destroy his toys because it would break him.
Mistress Luna wanted to try something from her bucket list and she settled for crushing feet because it was the easiest of all the remaining items. The mistress lined up a few items she wanted to crush and she crushed them for her fun and enjoyment. She even took a video so that she would enjoy to watch it after she was done crushing the random things with her sneakers.