Vacuumer of copious amounts of crumbs & dog hair. I graduated with a degree in illustration from The Columbus College of Art & Design back when cell phones were cereal box sized. "Drawing makes possible the impossible" - my 8yr old.
How terribly disappointing, pebs! Please contact Spoonflower by either calling them at (919) 886-7885 or messaging them under their contacts page about it printing off grain. They should work with you and print it again.