Emoji Builder - Create your own emoji in no time 💨
Photoshop.com - Photoshop.
Emoji Maker - Create custom Emoji based on Twemoji
FotoFlexer - FotoFlexer is the most powerful online photo editor in existence.
My Slack Emoji - Turn your team photos into Slack emoji's
Face Live Camera - Face Live Camera: Photo Filters, Emojis, and Stickers is an amazing photography app developed and published by Lyrebird Studio for Android and iOS devices.