I've made this collage with pictures from HERE
I am so sure I saw this on sale in Topshop the other day, but I couldn't find them on the website, so I googled it and found these. (link above)
Personally I find this a bit too over the top, it seems uncomfortable and they don't seem to stay on after you eat, but maybe for a special occasion? Halloween or someting, lol.
Have you heard of/tried these before?