I think it would be great if they added a new section right under the daily skins (it would also refresh daily) containing skins that you normally get from the egg coins. I understand that the point of the gacha machine is so that people spend there nemo bucks, so the skins would also be for nemo bucks at a slightly higher price (since you know which one you're getting). Uncommons would be 400 nemo bucks, Rares 1000, Epics 1800, and Legendaries 3400. This would allow players to get the skins that they really want without risking it or having to wait a long time to get the skin that they want (and it would make PA money).
Knowing how people are though, they would definitiely complain about skins only costing nemo bucks and cookies being useless. I would suggest adding some legendary-like skins that cost upwards of 1 million cookies. This way people would be able to spend all those cookies they've saved up and give cookies more value.
Ideally both of these things should be released together to balance each other out.