Bilbao almonds), rice cakes and "bollos de mantequilla" (butter buns). Bilbao, as other Basque cities, is known for a variety of appetizers and snacks, being prominent among them the "pintxos", which are typically eaten in bars and that consist of small slices of bread on top of which is placed an ingredient or mixture of ingredients, generally of many different types and usually including elements typical of Basque cuisine. Other snacks include "rabas" (fried or battered calamari rings, usually served with lemon slices), Spanish omelette (omelette made with eggs and potatoes, sometimes including onions and peppers), "txampis" (stuffed mushrooms), "triángulos" (Bilbao-style
Vegetable ivory requires hacksaws and files. Vegetable ivory is naturally white with a fine marbled grain structure. It can be dyed; dying often brings out the grain. It is still commonly used in buttons, jewelry, and artistic carving. Many vegetable ivory buttons were decorated in a way that used the natural tagua nut colour as contrast to dyed surface, because the dye did not penetrate deeper than the very first layer. This also helps identify the material. Vegetable ivory Vegetable ivory or tagua nut is a product made from the very hard white endosperm of the seeds of certain palm trees. Vegetable