They are an emergency floatation device.

Lisa Rinna loks like a goldfish suffering an allergic reaction. Her upper lip is just getting bigger and bigger and I am afraid that at some point it will simply envelope her own head, fulfilling someone's request for her to pull her lips up over her head and swallow herself. (I do not know of this desire first hand, but I am guessing that she has received it.) Alls I am saying is YIKES!