JB skipped the whole part of the story about who disposed of Caylee and what happened during opening statements. If the sticker evidence seems like it is tied to the body or that jury is buying it (and I do buy it), why not just imply through questioning that ICA was so heart-broken about leaving her baby with GA to be disposed of, she handed George the sticker to be placed with the body. The sticker doesn't have to be sinister, if the Defense spins it right and of course you believe their theory. She "could've" handed it to GA and not know that GA put the duct tape on the body or where he put the sticker. Of course, I don't believe it happened this way, but the defense could spin it that way instead of trying so hard to shoot the whole sticker residue down. I think admitting she gave it to GA for a part of their defense would do better than trying to discredit it. But, just my opinion of the matter.
Hope that made sense.