Don't ask me... because I don't even believe that light is ever a particle.

Light is waves, it's always waves, any means of measuring light will create the illusion of particles as the strength of the light, rises above or falls below energy thresholds in the equipment, and either gets measured or doesn't. There is no proof of the particle theory.

Thankfully, no one asserts that there are magtons like photons.

May I add, that I also believe that all the red shift measurements in astronomy are skewed by things we are just finding out about. Light does not take a straight path through the universe, and may be stretched out in wavelength, over time and distance. When we measure light from a distant star, we only a get distorted view of what was going on in the distant past. The acceleration of the expansion of the universe likely an illusion.

As far as we know, there is no magnetic particle (monopole)  corresponding to say an electron or proton for electric charge or photon for electromagnetism. The effect of a magnet is not a stream of particles such as a light wave, but a field. (Though if you are feeling curious you can look up the quantum mechanical view of fields in their relationship to "virtual particles".)

Some physical theories suggest that no such thing as a magnetic monopole is possible.

There is a good discussion of the subject at http://en.wikipedia.org/wiki/Magnetism

Have fun!

Jon