Turtle Graphics & Animations in Python

I’d like to collaborate on a series of small, creative Python programs that showcase what the Turtle library can do. The aim is pure creative exploration, so I want to see playful ideas turned into clean, well-structured code that I can read, learn from, and extend.

Here’s what I have in mind:
• Basic shapes and patterned designs that demonstrate colour fills, line styles, and simple transformations.
• Fun text-based animations—think scrolling titles, letter morphs, or any eye-catching treatment you can dream up.
• A handful of interactive sketches where key presses or mouse clicks trigger new drawings or motion.

Each script should:
• Be written for standard Python 3 with the built-in turtle module (no external installs).
• Contain clear function names, concise inline comments, and a brief docstring at the top explaining purpose and controls.
• Run from a single file (plus an optional README if extra usage notes help).

Feel free to suggest additional visual twists or techniques; experimentation is welcome as long as the code stays approachable. I’ll test everything on a vanilla Python setup, so please avoid obscure dependencies. When we’re done I want a folder of separate .py files, each illustrating a different concept, ready for me to open, run, and dissect.