It is often suggested that gravity should be simulated by rotating the entire habitat module of astronauts in microgravity. But wouldn't pole dancing be enough? The individual astronaut swinging around a pole stick, like a daring strip dancer/acrobat holding on to it with her hands while throwing herself around it with her body at 90 degree angle to it. An astronaut could maybe swing like this in a sleeping bag, or while doing some exercise. With minimal design requirements for the spacecraft. Wouldn't this be enough for the bodily fluids to learn about in what ends the head and the bottom are?
We've got an example of a Skylab pole-artistronaut right here: