I've never used drabs or dribs. But, like Angel, bits and pieces, little bits, pinches, a dash or this or a dash or that, sprinkles, just those things that have already been mentioned.

But it makes me think of mosaics and tessera--other bits of things like that artistic--and dappled sunlight, the light being in spots--and speckles and freckles--pointillism--spots and dots--particles and particulate--grains and sand--pebbles and pimples (ugh!)...

But generally: Just bits and pieces! (And now you've given me drabs! Dribs and drabs! (Since there's a dribble and a drizzle, wonder whether there's a drabble or a drazzle?)

Blotched regards,
WW