Toy Hamster Commercial?

I just saw a Commercial of a Toy Hamster. My son is 3 and he loves it.
My plan is to get him one of those toy hamsters for christmas.
What is their name and can I buy it from the local toy store?
The name of the toy is weid, is some sort of japanese word, can you tell me how the hamsters from the commercial are called?

The toy hamster you saw in the commercial is the zhu zhu pet.
Zhu Zhu Pets are like pet rocks only cute. The trendy little toy looks and feels like a real hamster only it doesn't make a mess and will never die.

Children can play with them without fear of being bitten and without worrying about being too rough.
Zhu Zhu Pets offer the fun of a hamster without that responsibility. The company even markets the toy that way.
They're hard to find because every little kid wants them.

It's spelt "Zhu Zhu", but it's pronounced as if it's "Zoo Zoo", which is supposed to be short for "Zoom Zoom". So not Japanese at all lol!