You'll need some glitter of course, some glitter glue (I used Gutterman, but any other brand will do) and an old toothbrush (preferably one that has been used by yourself)
Glitter, glitter glue and a toothbrush
Add some glitterglue onto the toothbrush like you would when using toothpaste, really!
Apply the glue onto the part of the crosstitched piece gently but quite firmly pressing the glue inside the threads.
Sprinkle loads of glitter over the area you put the glue on.
Wait for it to dry (like two hours is perfect) and remove the excess glitter.. brush slightly with soft towel and you've got yourself some glittering hedgehog, or something else.. whatever!