EmojiOne for Chrome - Finally, an emoji keyboard for the modern desktop.
Epic Pen - A windows tool for drawing over your desktop and applications
Vector Emoji - ๐ for Sketch & Photoshop
Gromit-MPX - Create annotations by directly drawing on your screen.
Mojibar - Better emoji search from your Mac's menubar
Ardesia - Ardesia is an usefull software for use your desktop as a Sketchpad.