I challenged myself to make a mobius shaped heart in Fusion360, using the sweep and loft functions. I designed two versions, the plain heart and a freestanding version with a base.
Many thanks to Kristian_Lanholm who has some great videos showing complex modeling techniques in Fusion 360 - Mobius Strip in Fusion 360 - (Sweep and Circular pattern) (youtube.com)
The author marked this model as their own original creation.