Bootstrap Fullscreen Select is a custom fullscreen select / multiselect for Bootstrap using buttons or User defined elements, designed for mobile devices. This plugin makes it super easy for a user to use the 'select' on small touch screen devices.
EasySelect is a jQuery plugin to present multiple select elements in easier way.
Selectator is a jQuery-based replacement for select boxes. It supports searching, and affects the original select box directly, which is used as the data container.
A tutorial about building a script that is going to take an ordinary select element, and replace it with a better looking, markup powered version, while keeping all the functionality intact.
Dropdown with multiple checkbox select created by using jQuery. Easy to use and adapt.
This is a nice animated custom select by using CSS3 and jQuery. CSS3 transitions and transforms are used to create this animated select.
ajaxComboBox is a jQuery plugin for creating a text box it can "autocomplete" and "pulldown select".
fuzzyDropdown converts a select box into a fuzzy searchable dropdown.
fuzzyDropdown proxies your interactions to the underlying
select box. Also, the dropdown is fully navigable via arrow keys.
Some inspiration for styling a custom version of the select element. There are many possibilities and ideas of how to let the user select a choice in style.
Multi Column Select is a simple plugin that will hide the select control and then display a multicolumn dropdown (css). Uses the original form control so will work if JS is not enabled and the form can be processed as normal.
Flexselect is a jQuery plugin that turns regular select boxes into Quicksilver-like, flex-matching, incremental-finding controls.
Select or Die is a jQuery plugin to style/replace