Today, we were joking around in the team, and we figured it would be cool if you could simply include a Cocoapod in your iOS project to add an easter egg. All kidding aside, there's actually a nice command-line utility which allows you to search Cocoapods:
https://github.com/rochefort/cocoapods-search
No results for "easter egg", though :) But you might find one via cocoapods-roulette :)