I plan on printing some out from Siredblood’s link. I watched his video and you can certainly do it that way. My only concern with adhesive backed “stickers” is that with all the handling of game pieces, I can imagine that the stickers begin to peel up after a while. If you’re going to use the adhesive backed stickers, might I recommend to apply thin CA glue around the outside edge of the sticker after you’ve burnished it down on the carrier deck. You can get some thin CA at your local hobby shop where they sell RC planes, or just order it online. Because it is literally as thin as water, you’ll need to apply it with some sort of makeshift precision applicator. But after that, you won’t have to deal with annoying stickers that don’t want to stay down tight.
Also, if you use a glossy type sticker paper, after you’ve applied it and the carrier is “all done”, spray the entire piece with a light coat of Testor’s Dullcote spray laquer. You’ll get rid of the sheen both on the plastic and from the glossy paper. All the colors will “blend” together and the piece will look much better. 😉