It is the well known boundary condition for magnetic field vector H that the tangential component of H is continuous at he boundary of two media and perpendicular Component of B is continuous. Force on a charge is q( v cross B) . So, if there is tangential Component of H but no perpendicular Component of D at the surface, the force on the charged body will be upward and balance the weight of the charged body.
So, the body can move without any work. That is the system will work as a perfect magnetic conductor.
I don't know, whether I am discussing the right point or not.
The question is unclear. Do you mean the good electric conductor (superconductor??) made from magnetic material? Or, maybe, you think about (soft) magnetic material being highly susceptible to external magnetic field (thus not the permanent magnet)? What do you want to be visualized? Isn't the regular photo/video satisfactory?
My question is: What is the field pattern of a perfect magnetic conductor (PMC) material, how its field pattern alters at the boundary. (The original statement is "When a rectangular dielectric placed over an infinite ground plane gets excited with an impulse function then it's top and the bottom wall will behave as perfect electrical conductor (PEC). Its four sidewalls will behave as perfect magnetic conductor"). Here visualization implies the imagination of various field components. Hope I have clarified this question to a certain extent.