An yi ado da yumbu da haɗe-haɗe na nau'i daban-daban da kayan aikin hannu masu ban sha'awa.Adon yumbu --- shine sigar fasaha ta farko a tarihin wayewar ɗan adam, wannan nau'i shine mafi sauƙi kuma mafi ƙayyadaddun duk nau'ikan fasaha, da sirrinta da abstraction. ba su misaltuwa!