I was a backer on Kickstarter for this and the one I received was already leaking glitter. They made it right and sent me a new one and it was perfect. Probably just an initial batch quality issue. But the card was hilarious when opened (even though they anticipated it and opened it slowly). Will be buying more.
The card was leaking glitter before I even removed the glitter backing. I followed the instructions, removed the adhesive sticker and then the glitter backing, sealed the card and the second I stood it up it began leaking glitter. The recipient was not in any way surprised because the glitter began pouring out at he pulled the card out of the envelope. I had high hopes for this but was severely disappointed.