If you can't decide which artwork to hang, the answer may be to opt for a clipboard gallery. Mount several inexpensive clipboards to the wall, and you get a flexible canvas, one that you can update easily whenever the mood strikes you. Or put the control in your kids' hands, and they can launch a new gallery show each week!

Related: Framed! 18 Picture-Perfect Gallery Walls

A cable art display hung at the right height allows either you or your little artist to clip individual works in an eye-catching row. You'll find these in catalogs, though of course it costs less to DIY—and it's super easy.

Upcycle artwork that would otherwise go in the garbage, turning little doodles into unique magnets to put on the family fridge or to give as gifts.

In some homes, built-ins and windows monopolize most of the wall space in the public rooms. In that case, turn unused space in a hallway or stairwell into a magnetic chalkboard—that is, a living gallery where you kids can doodle or hang their creations for everyone to see.

Related: Top Tips for Using Magnetic Paint Primer

Install simple photo ledges to display an ever-rotating array of children's artwork. The lumber for an 8" ledge like this one costs about ten bucks, and it's a simple project, suitable even for beginning woodworkers. 

For a truly special display, contact Sunny Little Studio to have your favorite pieces of artwork translated into custom pillows or soft toys. All the details are recreated by hand with fabric and embroidery, and the result is something to treasure forever.

With Artkive, saving your children's artwork is as easy as taking a photograph with your smartphone. When you've uploaded enough for a book, you can order a bound copy to leaf through for memories and inspiration.

Related: 10 Digital Tools to Help You DIY Your Dream Home

If you're interested in more kid's projects, consider: 

Kid-Friendly DIY: 10 Projects Sure to Inspire Summer Fun

12 Fresh Ideas for Your Kids' Room

Kids Crammed In? 10 Great Ideas for Your Kids' Shared Bedroom