RightGIF - Less noise, better GIFs. A better /giphy for Slack.
memade - Amazing memes, made easy. For everyone 🎉
Firesong - Giphy for Music in Slack w/ Emoji Search
Tars - TARS enables users to create chatbots that replaces regular old webforms.
Yarn for Slack - Drop TV and movie clips into your Slack chats
Slackbox - Spotify playlist collaboration through Slack