Sticker.Place API - Get stickers for your app
Twidd - Enhanced Twitter DMs - Create and use DM templates, all within a browser extension.
StickerSDK.Mojitok.com - In-app store of animated emojis, GIFs, and stickers with personal curations for 10x engagement and revenue - as seen on Samsung Galaxy.
Smart Stickers - 90 catchy illustrations for attractive designs
Bolt Camera - Add video stickers & reaction clips to pics and videos
#Stickers on Twitter - Now you can add stickers to your photos on Twitter