Do this once a year, make a photobook, and give it to them for a graduation/wedding present.
The 100 Hour Quiet Book: 22 amazing quiet book pages with links to all the patterns!
Mouse and cheese quiet book page
Quiet Book for Boys - 9 pages - (no reason a girl wouldn't enjoy it just as much) with link to templates on All the Quiet Things at http://allthequietthings.blogspot.com/2013/03/quiet-book-boys.html
How to Make Puffy Paint - This was such a fun and EASY craft for the kids to do! They loved the texture and had so much fun mixing everything together!
Top 50 Easy Kids Crafts on iheartnaptime.com- so many fun ideas!
Quiet Book Patterns & Ideas
DIY Felt Vegetables
mommo design: BLACK AND WHITE IKEA HACKS FOR KIDS
These buggies are absolutely adorable for kids or the refrigerator and their 'home' storage case is over the moon cute!
Would be a good idea for all of the crafty things I want to make! Washi Tape Boredom Buster Jars
Washi Tape Growth Chart
DIY Tic-Tac-Toe - Cute gift for kids!
16 Seashell Crafts for Kids. Use all of the seashells you've found on vacation to make fun and colorful crafts with your kids for summer.