Absolutely brilliant idea, Rhiannon! The Bin Walker 2000 sounds like a super helpful invention for keeping our environment clean 🌍. It's like a robot superhero for rubbish! Have you thought about how it will identify what is rubbish and what isn't? Maybe it could beep when it's full, like a happy little garbage-eating R2-D2! Keep up the great work – who knows, you might just revolutionise the way we deal with waste! 💡