I agree, I really enjoyed finding the things to click on to get the Easter eggs and would love if they had that sort of event in the future. But I don't think they have since that one. I'm not sure if it's because it requires extensive coding that they can't do right now or because they discovered that it led to a lot of extra items that people ended up not wanting (although I, for one, love the Easter egg items and would not mind more!) :D