Have you heard about this product from Tsukineko? We have this in stock in many different colours.
This new product creates sparkly and shimmery effects when sprayed on both dark and light papers. The colours they come in complement the Memento inkpads. When dry, the spray is permanent and won't rub off. Best of all, they are water based, acid free and non toxic, so you can use them in your scrapbooks!