jQuery uheprnGen

jQuery plugin for Ultra High Entropy Pseudo-Random Number generation.

Autumn.js

Generates deterministic colors.

jQuery Random

jQuery plugin that picks elements at random in a collection.

Pixel Rain

This plugin will generate random pixels which will fly around your page randomly. BE CAREFUL!! This plugin can cause some heavy load on your browser if you use high amounts of pixels.

gpImageRotate

jQuery plugin for creating portfolios, carousels, image galleries, and more.

randomizer

jQuery plugin that give you functions to get/set random values or call random functions.

jQuery randomArray

jQuery plugin for generating random array with positive int elements.

jQuery tumblr-posts-random

A simple jQuery plugin to display random Tumblr posts.

randomBackground.js

Attach a random background image to an element from a user supplied list on page load.