When you're describing something small and fragmented, there are a variety of synonyms for "tiny bits" that can be used. Some options might include "scraps," "shreds," "flakes," "specks," "fragments," "particles," "grains," "smidgens," "crumbs," "dust," "pebbles," "chips," "shavings," "splinters," "slivers," "snippets," "pieces," "bites," "nibbles," and "morsels." Depending on the context in which you're using the term and the image you're trying to convey, different synonyms for "tiny bits" might be more fitting than others. All of these words can help you to paint a specific picture and create maximum impact in your writing.