The face mask sticks okay. But I wonder if you left it on for a long period of time if it would come off. The flip flops don't have a backing but they stay on pretty well. They're just made of foam.
This is actually the first time my dolls are using the cucumbers as they were meant to be used. They mostly use them to go with salads they make, or they put them on their hamburgers when they can't find real lettuce. It fits AG hamburgers perfectly.