Ficus or figs are in a large family of plants showing many interesting and varied characteristics.
One of the most interesting aspects of various figs is the leaf. Leaves can be large, smooth or hairy, glossy or dull and have many, many other variations.
The photo below shows some fig leaves and their variation. The size of the leaves varies from 7″ to about 1″ on the right. All can be used for bonsai of various sizes depending on how much the leaves can reduce with proper culture and care.