SlidesWhiz - Better shortcuts and toolbar for Google Slides
Acrylic Charms by Sticker Mule - Add some charm to your life.
Slideflow - Turn your Google Slides into a website in seconds.
Zimit - Configure price quotes for services
TalkingDeck - With TalkingDeck you can create instructional videos from Google Slides presented by our animated characters.
Chumpu iMessage Sticker Pack - Animated Chumpu cartoon stickers for iMessage