A tuile (a
French word pronounced as "tweel") is a thin, crispy
wafer. Sometimes they are used to separate layers in archetectural food. (You know, those
tall constructions in
haute restaurants that look impossibly weird and have to be dismantled to eat.)
They're really quite fun, though.
You can make them out of pureed potato for example, spread thin on a cookie sheet with a plastic sheet with the desired shapes cut out from it. Use an offset spatula to spread it thinly, then lift off the sheet. Bake at around 350 for 6 or 7 minutes. As they cool, you can drape them over a bowl or the handle of a spoon to make interesting shapes.
Or you could just pop a can of Pringles.