These adorable amphibians, native to Mexico, have become a beloved icon in the kawaii (Japanese for "cute") aesthetic, ...

You can print one page or all of them and these free coloring sheets that are fun for both kids or adults. For more fun ...

I made a Doom source port that runs within a PDF file. PDFs support Javascript, so Emscripten is used to compile Doom to asm.js, which is then run within the PDF engine. Input/output is done by ...