Icon Pocket Mac App
Update:You can sign up to use Icon Pocket free here.
This is the Icon Pocket Mac app. It that lets you access your icons via your task bar and drag them directly into a number of different design apps such as Photoshop, Illustrator, Sketch and Pixelmator.
Icons are added to documents as actual files not png's so its pretty awesome stuff!
The Mac app and a whole bunch of other awesome tools will be free to download next week when I launch Icon Pocket.