Gopnik's Blinket machine and one year olds

While I was listening to the section on Gopnik's Blinket machine, I couldn't help but wonder if this study or way of studying covariation could be used in children under the age of two. I work at the parenting center Birth to Three with a One's group and it seems to me that I have witnessed children using their reasoning of covariation. One child for example was using a toy which had one button which made the toy play music and light up, it also had several other knobs on it which also resembled buttons. Although there were several other "choices" the child continuously chose the correct button which made the toy turn on. I purpose that if a less complicated toy than the blinket machine could be created it would enable further investigation of younger children and their abilities. A toy which had different buttons on them but only one made the toy flash and one only made the toy play sound. You could tell the child to make the toy flash and play music. Instead of requiring that the child tell which button initiates the sounds and flashing the child could simply be observed. I hypothesize that the child would try the different buttons and be able to identify which ones were the "blinkets" and which ones were not, just as the older children had. You would have to make sure that the buttons were all the same size in order to control for size preferences in children of this age. You could also test covariation on younger children using some sort of looking experiment.
Although this is a rough sketch of an experiment and there could potentially be numerous down falls, I do however feel that it would be very beneficial to see if younger children have this ability. I am sure that Gopnik could come up with a better, more solid experiment.