If they're anything like the other two sets I've gotten from the same maker, they'll stick for a long time. Whether or not they're worth the price is up to you because they can't be reused, but they'll stay on all night unless you pick at them. I've got the
hot lips hearts set and the
something blue set. The second one I wore on my wedding day for about 18 hours with no problems, although the instructions say not to wear for more than 8. These pasties in general are a lot better for special occasions than every day wear, but to me, they're worth the price for the special occasions.