Love this hashtag game by Jimmy Fallon, interacting with his fans on Twitter before his show “Late Night with Jimmy Fallon.”
It does a great job connecting with fans as well as crowd sourcing material for the show.

What hashtag promotions have really connected with your fans?
Have you run Twitter competitions like this?
How do you reward fans? Retweets, showing tweets on big screen or web articles, prizes?

Enjoy here is some of the entries for #gamedaysuperstition

new TWTR.Widget({
version: 2,
type: ‘search',
search: ‘#gamedaysuperstition',
interval: 30000,
title: ‘hashtag games with fans',
subject: ‘Jimmy Fallon #gamedaysuperstition',
width: ‘auto',
height: 300,
theme: {
shell: {
background: ‘#8ec1da',
color: ‘#ffffff'
tweets: {
background: ‘#ffffff',
color: ‘#444444',
links: ‘#1985b5'
features: {
scrollbar: true,
loop: false,
live: true,
behavior: ‘all'