Sticker.Place API - Get stickers for your app
StiKey - Sticker + Emoji Keyboard. Sticker Marketplace.
Acrylic Charms by Sticker Mule - Add some charm to your life.
SketchKeys - Learn Sketch shortkeys easily w/ keyboard stickers
Albmoji - Sticker & Emoji pack inspired by Albanian traditions.
Zoomyy - Adds a zoom motion to existing photos or videos