Make your own magnetic frame

Artful adventures has a tutorial for how to make a picture frame to stick to the refrigerator using corrugated cardboard and paint. They can be decorated with stickers as well.

Good for ages 7 and up.

Get the instructions here:
http://www.artful-adventures.co.uk/2009/11/18/create-your-own-fridge-frames/

Rainbow Screen Prints

The chocolate muffin tree has a creative idea of how to make rainbow prints using styrofoam blocks and tempura paints. Kids will have fun punching out their picture into the styrofoam.

Good for ages 6 and up.

Get the instructions here:
http://www.thechocolatemuffintree.com/2012/02/styrofoam-rainbow-prints.html

Butterfly Craft Roundup

All kids networks has a great butterfly craft for kids to make and shares an example of ink blotting using a butterfly cutout. Kids will love to paint the one side and see how the wings become symmetrical. Their post includes a butterfly template printout so all you need to do is cut out the paper.

http://www.allkidsnetwork.com/crafts/bugs/folding-paper-butterfly.asp

Piggy giggles has a really simple paper napkin butterfly project. All the kids need to do is color the napkin with markers, spray with water and tie up with a pipe cleaner.

http://www.piggygiggles.com/crafts-for-kids/decor-crafts/paper-napkin-butterfly-craft-easy-activity-young-kids.html

No time for flash cards creates a butterfly sun catcher which uses construction paper, contact paper, ribbons and crayons.

http://www.notimeforflashcards.com/2012/02/toddler-butterfly-craft.html

Make your own beanbags

Disney's family fun has a nifty way for making bean bag balls using 2 balloons and lentils. They're too cute.

Good for ages 6 and up.

Get the instructions here:
http://familyfun.go.com/crafts/beanbag-balls-670529/

Flip flops and apple sauce has a similar tutorial.

Get the instructions here:
http://www.flipflopsandapplesauce.com/2009/04/balloon-bean-bags.html

Lifesaver Flower Lollipops

Busy bee kids crafts has a cute idea for how to make flower lollipops out of lifesavers, using one lifesaver in the middle and six surrounding lifesavers and a lollipop stick. Bake the candy to have it fuse together into a flower.

Good for kids ages 5 and up.

Get the instructions here:
http://www.busybeekidscrafts.com/Flower-Lollipop.html

Gas Filling Balloon Science Experiment

All for the boys has a nifty science experiment featuring an empty water bottle, white vinegar, baking soda and a balloon.

Good for ages 6 and up.

Get the instructions here:
http://www.allfortheboys.com/home/2011/8/4/science-fun.html

Mama smiles turns her ghost into a balloon by drawing a face on it.  And makes the science project for Halloween.

Get the instructions here:
http://www.mamasmiles.com/fun-halloween-activity-for-kids-self-inflating-ghost-balloons/

DIY Glowing Lantern

Preschool rock had a terrific idea for how to make a lantern out of popsicle sticks, wax paper and craft stickers.

How To Make It

Step One:
Tear off a piece of wax paper about 2 feet long and lay it out on a flat surface. Starting at one end, glue four craft sticks in the shape of a square.

Step Two:
Repeat that box shape three more times, end to end. Let it all dry.

Step Three:
Trim excess wax paper leaving an inch along the end for gluing. Fold the box into shape and glue closed. Next, place it over an electric candle and watch it glow.

Variation

You can decorate the wax paper with crayons or glue on embellishments if you want.
Good for ages 4 and up.

Artsy fartsy mama has a version on her site.

Get the instructions here:
http://www.artsyfartsymama.com/2013/02/diy-wax-paper-lantern.html