sprinkle (someone or something) with (something)
To cover or coat someone or something with lots of small drops or particles of something. I sprinkled the diorama with glitter to give it a festive look. The priest sprinkled the celebrants with holy water.
sprinkle (something) on (someone or something)
To drop, disperse, or scatter small drops or particles of something onto someone or something. I sprinkled glitter on the diorama to give it a festive look. The priest sprinkled holy water on the celebrants.