Подборка крутых штук на Twitter Bootstrap
X-editable - In-place editing with Twitter Bootstrap, jQuery UI or pure jQuery (ДЕМО). Очень хороший!
Bootstrap Image Gallery Demo - Bootstrap Image Gallery is an extension to the Modal dialog of Twitter's Bootstrap toolkit, to ease navigation between a set of gallery images. Уже используется в vvShop.
bootstrap-daterangepicker - This date range picker component for Twitter Bootstrap creates a dropdown menu from which a user can select a range of dates. It was created for the reporting UI at Improvely. ДЕМО
Fuel UX Controls - Clean and lightweight UI controls for modern web
Golden Bootstrap - is a bunch of less written css rules giving you the divine power of using golden ratio sized columns with Bootstrap.