Under sweet resources to have: CD with nearly 2000 printable square designs on 46 different collage sheets. Here are some free tutorials for what you can use them for (glass pendants, scrabble tiles, clay transfers, etc)
Very crisp scans of different love letters, manuscripts, and handwritten sheet music--many from the added to fleur-de-lis in pinks, chocolates, and greens to make this. Printable collage sheet 688 by piddix.
Pool Party, Expresso, More Mustard and Cajun Craze. Images used in this digital collage sheet come from a German naturalist book full of hand-colored engravings from the Printable collage sheet 839 by piddix.