They're quite easy to stencil with - you can sprinkle on randomly:
Plonk the stencil (Hexagons by Imagination Crafts) on top:
And hey presto! (It doesn't seem to matter if you sprinkle first and put stencil on top or the other way round, lay down stencil and then sprinkle):
And don't forget to flip the stencil over:
And use up the ink on the other side:
Thanks for looking!