Sea otter
35 parts, one continuous build
About 10 minutes at Slow
2 studs tall, 5 by 8 studs across
You build it in one flow, from the first part to the last: every step is one part. Tap, and it goes on.
Once on the way the model waits while you build a small group of parts on its own; then it goes onto the model, and the flow goes on.
Build it with real bricks beside you, or just step through it.