TOMORROW it is "go insane about kukuri" day, but TODAY it is "ah fuck I never finished solving that one snakekey's adult design so I can work out the intermediate ages" day.
This variant of the species has massively elongated furry ears that extend all the way down the back, and at rest they're held vertically from the body. But they don't merge in the middle: they can tilt them down horizontally, so if they lie down they can become rug (with a spike trap along the spine). But that means a full reference sheet needs to tell you what the ventral and dorsal side of the ears looks like.
The best part? The miscreant responsible for proposing this cool idea that produces extra work and swearing for the ref artist is MEEEE. I DID THIS. I came up with this variant concept and I think it's great that I'm the first one to be inconvenienced by them.