what is it?

[30 hex]

I have a pice of rock with what loks like grains of white rice with a tuft of hair at the end.Is this baby feather dusters? they look kinda fat.

 

[slowest is fastest]

Could be baby feather duster or small sea squirts or sponges or something else. Hard to say for sure without a picture but all good things
SiF

 

[dad]

i'll agree. but probly sponge by your discription. my 2 cents,lol