says he's pretty happy with these babes...
This will be a pretty basic Workbench article, but I found this technique useful, so maybe you will too.
The U.S. Infantry with Stingers were recently showcased here, and I want to label them in case someone ever asks me, "where did you get those figures?" I'll use Avery-brand ¾" labels for that purpose.
As you can see above, I primed both sides of the metal base before attaching the figure, which provides a suitable surface for writing on. I've used permanent marker to write the manufacturer's name – "Rafm" – on the base, but it is almost indecipherable. There has to be a better way!
By using self-adhesive labels, I can use an ordinary pen to write the text, on a proper writing surface. I usually put a description of the figure (in this case, "Inf. w/Stinger") and the name of the manufacturer. I used the green labels because that's 'army'. 
The labels are easily peeled off and placed onto the base bottoms. Why use ¾" instead of 1" labels? The 1" labels would give more room for text, but would be pickier to center on the 1" base bottoms.
I'm using metal bases for storage in box lined with magnetic sheets, so a minor downside is that the label slightly reduces the magnetic attraction by adding a very slight distance between the base and the magnet sheet. But not enough that I've ever noticed!