NNKit
This library represents a collection of well-tested, robust, occasionally idiotic, but always well-meaning widgets for the Objective-C developer.
At the moment it is a poorly-documented collection of code samples for my NSMeetup talk as well as a shared repository of solutions to common problems for Switch and tmbo, the latter being a sort of promise to keep on adding, testing, and documenting the framework.
The framework is broken up by purpose, the most entertaining of which are likely Swizzling and Hacks.