It would be quite impossible to make a cat magnet. People need to understand that it is no more than advertising for this website. To be attracted to a magnet, first the item must be magnetic. This conists of lining up the domains. This is quite impossible to line up the domains in the atoms of a cat. It would be extremely hard to line up the domains in a cat, and I don't think the cat would respond well to be rubbed for hours with a magnet. It could be done maybe in the future, with strong enough magnets,that will magnatize and not just crete a charge, but I think we need a different animal, like goldfish maybe, something that doesn't have claws.
You said that it is impossible to line up the domains, then you said that it would be hard, and even if you could line up the "domains" ( I think you mean something else since atoms have nothing to do with domains), you would just be creating an powerful electro magnet...Which would more likely just get you stuck on some highly magnetic surface.
Also-
The suction tires are impossible!!!!!
It could happen, but I would like to know how heavy the rider is. by what the ad said, it is claiming that the suctions cups can retain enough force that you could stick on the ceiling... then why can a kid still have enough power or momentum to move the bike forwards? By common logic, the stronger the force attaching something to something else, the stronger the opposing force has to be to rip it off.
I am not going to agree with anyone, nor disagree. I have just got one problem. It's not "contridiction". It's "contradiction".