Cut a cactus ball in half and graft on a new head - a new growing method turns it into a work of art

Dear little masters, do you all like cacti? On the roof of the little gardener's old house there is a pot of cactus. When I was mischievous as a child, I got pricked by it plenty of times, but I still played with it tirelessly. Later, when I started growing flowers myself, I also kept a pot of cactus ball, treating it like a ritual object of the home. The picture below is the cactus ball I grow, very common. In my understanding, cactus balls have always looked like the one below, until I saw a forum friend's cactus ball.
1. A "new continent" in cactus ball care
It was only after seeing the cactus ball in the picture below that I discovered cactus balls could actually be grown this way, like discovering a "new continent." This little master is a big expert in the forum. I forgot his name. Little masters who have seen him can remind me. What he is good at is performing "surgery" on cactus balls and then grafting them. There are many things that can be grafted, and he has grown cactus balls into works of art. Quite imaginative.
2. "Dreadlock" cactus ball, what do you think?
For example, this pot of cactus ball we just saw. After he cut off the top, he grafted this whip-like plant onto it, just like a head of "dreadlocks." The look is very novel and also very bold. The little gardener is rather conventional and never thought cactus balls could be grown this way. Take a look at his other works, potted plants that really open your eyes.
3. Grafted cactus balls, can you accept them?
For example, the two pots in the picture. After cutting and treating the wounds, he planted small cactus balls on top. Cactus-type plants have very tenacious vitality, and the success rate of grafting is extremely high. Also, the little gardener has previously seen this little master's videos on Tieba, where he directly uses a knife to cut the ball below and then graft onto it, like an amateur "plant doctor."
However, although the little gardener finds this method of handling cactus balls very novel, I also feel that cutting cactus balls like this is actually a bit "cruel." If it were my own cactus ball, I would not be able to bring myself to do it. But this little master is probably producing them in batches, and after many experiments, he is already very skilled at it.
For example, grafting like the one in the picture above is also common. In his case, he specializes in this kind of grafting. Little masters who are interested can go search on Tieba. This big expert should be findable. The reason the little gardener posted this is to let everyone see other people's "creativity" in growing flowers. Of course, when it comes to my own cactus ball, I cannot bring myself to do it. What about you?