From nice scrapbooking papers,
to print-it-and-build-it toys of all shapes
Marilyn Scott-Waters has lots of goodies for free and to purchase on her site.
And as a published artist, she has a few nice books, not just her lovely papercrafting ones, but also 'Haunted Histories, Creepy Castles, Dark Dungeons and Powerful Palaces' with J.H. Everett and is in the process of making 'Mysterious Math Carnival' which is a series of games to improve all sorts of basic math skills.
She's one of those artists that I'd like to sit at her side for a day to see/learn how she works all of her magic. Go check out her site and have a fun time there!
Have a good day!