A good idea!
Why emoticons we regularly use in our messaging systems have to be so lacking in grace and personality? The same question have made themselves Max and Pere Joan. And their response has been to create an application that allows us to choose and use as icons for our conversations drawings made by cartoonists and illustration.
Currently attempting to obtain financing through crowdfunding has not been successful, but it would be great to re-launch the project and take the project to a good end. Best of lucks for them.