I recently gave in to a bit of temptation and purchased a set of Alpha Legion decals / transfer slides from Forge World. These decals are very similar in nature to the ones that ordinarily come with space marine boxed sets (and so forth). They require water to be soaked in to them to slide them off the sheet and then application to a suitable surface.
As can be seen in the picture, there's a range of decals for all kinds of things. Ranging from shoulder pads, to legion banners, vehicle markings and all manner of indiscernible markings that the Alpha Legion are not willing to explain, and even lengths of chain at the very bottom!
I will need to acquire some microsol and microset very soon I feel. But then again: are people still using these products? Are they still some of the best available on the market … forgive my ignorance, but its been a little while. Opinions and options welcome.