Green Toys: Tube Toys
Oscar Diaz is a smart designer indeed.
His achievement has nothing to do with the quality of materials he has used for toys. It has everything to do with packaging and reducing waste. I hope the title isn't completely misleading.
The package transforms into a toy. So there are pre-cut slots and holes to fix the wheel axles and components. Such toys have been named Tube Toys.
By the way, these toys are available for $15 only.