Here are some of my project that I've made:
AAI MEET EE VERIE KOEL KWIS IN PAAITON!!!1(one)!! DAUNLOOT IIT HEER!!
I made the quiz in Python and compiled it with py2exe.
Just fixed a CSRF vulnerability that allowed anyone to access the admin panel and add, edit or delete posts here.
If the user is not succesfully logged in, I would redirect them to the login page (using the PHP header function). Only problem is that I forgot to use the "die" function to stop the script from continueing (did I spell that right?) and posting the post anyway.
I could just use this HTML file (modified version of what I use on the admin page) to add stuff to the blogposts.
If you want to know more about CSRF, check out Tom Scott's video about CSRF.