SerenaBot - A simple chatbot for Serena Williams
Twitter Polls - Polls embedded in tweets
Kanye Cube Blast - Help Kanye beat the haters by basting all the cubes!
Simple Poll - The easiest way to create polls in Slack
Pewdiebot - Chat with the bot version of the king of YouTube, PewDiePie
Curious Polls - Answer a question once a day for the chance to win £100/$100