Some Asian grocery stores in Lausanne are Uchitomi, Mikado and Thao. If by rice crackers you mean senbei, traditionally it shouldn’t contain any nuts, as it is made from rice or potato. There is a type of senbei that contains soy nuts though. There are many varieties nowadays, ranging from sweet to fish and nori containing ones. Although pricey, you have more options online. I’ve regularly ordered from the Japan Centre (www.japancentre.com
) .Also know of someone who orders from Nihon Ichiban (http://anything-from-japan.com
) and then there is of course also Amazon.