I came up with a model I call “Grey Rabbit”. As you can see, it doesn’t have to be grey, that’s just the name. It is a rabbit though.
I decided to try and make diagrams for this one. I think they’re understandable, but I wrote them. So I’m hoping someone will fold one and show me what they got or let me know about something that’s not clear. The diagram images are bigger than I usually put on here, but hopefully they’ll still upload alright.