Picrew

Picrew is a website that allows you to create avatars. The site was originally created for Japanese artists to upload avatar/icon creators, but around 2019-2020 the site had a boom in English and other non-Japanese users and saw coverage by both mainstream and niche news sources such as The Mary Sue.

The site, while not created for it, is great for systems to be able to create art of themselves. This can be for icons, personal use, or to just have a way to see your headmates if one cannot draw or use other art programs.