A few years ago, I started working on a Hetalia game and commissioned a bunch of dialogue icons from enghurrd / amc-art. I never finished the game and with my interest in participating in the Hetalia fandom fading, I figured the best thing to do is to release the icons so that other people can use them in their projects. The artist was fine with me doing this.
The pack doesn’t feature all the characters (for example, no Russia) and some characters have way more icons than others, so it’s not suitable for everyone’s needs. But I hope someone out there will find this useful. Please credit the artist if you’re going to use these.
You can download the pack here. It features icons for a total of 22 characters with individual expressions for different emotions.