Here's a bit of a random project. Feel free to use this in projects, just credit me! I put in 3 different shades so you can see how it would look with different backgrounds. I don't have all of the flags on here, but I have 14 of them. Sorry I didn't do the updated rainbow flag! I tried, but this was a project that I wanted to finish quickly. This cursor is beginner-friendly. If you are a beginner on Scratch and you want to tweak the cursor trail, there are comments inside the project explaining what to do to tweak this.
The scripts, idea, and art is all mine.