Im new to collecting but this is the first time I've at least noticed 2 different variants in te same case like this. Is one a Walmart exclusive color? I thought it was cool that they were next to each other in different colors so I picked then up. Kids will enjoy them. I got a couple of quick strips to hang cars on and when she does something good I'm going to reward Her by letting her pull and open a car. Sounds good in theory. We will see how it works when she gets back this week from grandparents.