Down here in NZ (and in Australia and the UK as well), we call them cushions. In the US they are called pillows. Sometimes, however, we might decide to call them throw pillows! Very confusing.
First samples of this particular pillow/cushion species have just arrived, and very lovely they are too. I'd say they're just right for a kid's room because of their smooth, soft snuggly fabric, bright long-lasting prints and very important ability to be chucked in the washing machine! (the cover, that is - the insert would need to be hand washed).
Keep an eye out for the full collection, coming some time soon!