Twitpile.com is a design tool that creates a montage out of Twitter followers, followings and lists.

You can further customize the montage with text, adding your own graphics or with cool effects.

Twitter Screenshot Bot takes screenshots of tweets.

Just mention @get_screenshot in your reply and the bot will take a screenshot of the tweet and send it to your DM.

Don't forget to follow or Twitter Screenshot Bot's messages won't go through.