Here's a jokey challenge for this mod. Recolor the elephant to look like an American Mastodon, and recolor the Woolly Mammoth to look like an Asian Elephant. Just to be a little confusing and also for a bit of laughs.

Or if the Asian Elephant is too plain, just recolor the Mammoth into a Palaeoloxodon.

The Mastodon from the Elephant was definitely something I was going to do once I got around to toying with extinct animals, but I hadn't thought of any good ideas for what to do with the Mammoth. I like your ideas! Maybe I'll have to add a pair of pachyderms in a future update ;) Of course, any extinct animals I'll add I'll have to check with Dephesmo first - their Dino Dawn mod is perfect for extinct animals, and I don't want to step on any toes. If they don't plan on adding any of the animals I have in mind, I will happily add them myself!