The most common souvenirs are made from wood. However, most visitors returning home are not allowed to bring back any raw foods or plants. Therefore, the single most desirable commodity for visitors to take home may be roasted coffee. It considered by many as some of the world's best. Experts definitely recommend buying whole beans (entero): in any kind of storage, they last longer, and ground coffee sold in Costa Rica often contains sugar because it preferred by locals. If you want pure coffee without additives look for "puro" on the package. Best prices come by purchasing several (sealed) bags of 12 ounces or so, but you can also buy in larger quantity. Excellent coffee can be bought in airports and local supermarkets.