You can very easily define symbols that match what is on collection boxes. That’s not difficult: the current standard is a series of numbers with three chasing

You can very easily define symbols that match what is on collection boxes. That’s not difficult: the current standard is a series of numbers with three chasing arrows. Obviously, you want to challenge the arrows because they were intentionally picked to look like the recycling logo, but if you need a complex system (and we don’t) numbers are fine. A better system is to consign containers and have the collection machine do the sorting.