Well there would still be the minor task of meticulously removing the edging of the original bubbles, which is still currently attached. Then finding perfect new bubbles for each one (along with the respective figures of course) and meticulously resealing them. Pretty challenging task, though I'm sure there's some pretty good counterfeiters out there who might be able to pull it off.
But if you look real close, you'll be able to identify some of the small cuts, tears and scrapes on that occurred when the original bubbles were removed. But I suppose if craft reseals are thrown up on eBay, with no way to get a good close look at them by the potential buyers, then anything could happen. Might be too late by the time the buyer receives the items and realizes he just got his chain yanked!