KiddoPaint might be a bit more popular than PaintCube. We know about 1 link to it since March 2021 and only 1 link to PaintCube. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
A cool demo might be Plasmo --> https://paintcube.co/ --> https://plushify.net/#/ --> physical toy. Source: about 3 years ago
A similar project: https://kiddopaint.com. - Source: Hacker News / almost 3 years ago
Sculptura - 3D sculpting for everyone
JS Paint - JSPaint is a web-based Microsoft Paint remake
Massless Pen - A pen for drawing in virtual reality
JS Canvas - Classic MS-Paint redone as a web application
Nomad Sculpt - Nomad is a sculpting & painting mobile app, available on Android and iOS.
GIF Paint - Like MSPaint… for GIFs.