Via Cbslocal.com:

Twitter hopes these are the emojis you are looking for to add to your Tweets.
The social media service is joining the build-up to the newest movie in the Star Wars franchise, “Star Wars: The Force Awakens,” by adding three exclusive emojois, or digitally created pictures, to Tweets.
Twitter partnered with Lucasfilm to create three #StarWarsEmojis with #C3PO, #STORMTROOPER and a new character #BB8.
According to a blog post, Twitter states users can add the emojis to their Tweets by using the hashtags representing keywords associated with the specific Star Wars characters. A small emoji-like icon automatically will then be added to the end of the text of the tag and embedded within the Tweet.
In the months leading up to the December opening of the new Star Wars movie, Twitter will be adding additional emojis of “legacy” and new characters.