It seems like with the blue and red mittens enough time and opportunities has been given to be able to turn the museum rewards in. Yes you need some raid cans and lots of food but still doable.
The green mittens seem next to impossible. Refills are extremely hard to come by. The time frames on these events are short. There is only a couple of events in which to get rewards.
So what’s going on? Why is green mittens so out of whack and all the roads such a short time span?