You need:

A square piece of paper
A pencil
And a couple of pushpins

Ready? OOKKK!

Step 1: Get a square piece of paper of any color, and draw 2 straight lines on it, like this:  
Step 2: Trace 4 diagonal lines from the  corners toward the centers, like this:
Step 3: Cut along each of the diagonal lines. Don’t cut farther than the lines you’ve traced. DO NOT cut the four straight lines.
Step 4: Label each line you just cut A, B, C, and D. Pin edges A, B, C and D to the center of the square. Make sure all four corners are overlapping. Then put the pushpin in he center. Yay! Windmills rule. Your finished windmill should look somethin' like this:
    Hey everyone! Here on the Blob Blog, we have a new blog for ya, and it's the amazing Craft Blog!! Here you'll find those perfectly creative crafts, and even a super-special craft of the month! We'll review crafting supplies, and if you guys, the readers of the Blob Blog, ever want us to review something, just put it on the comments section of the Craft Blog. 
    We'll have a new craft up here every two weeks or so, and if you recommend any crafts, send it to us, and we might just feature it on Craft Fest! Doesn't that just sound fun? Hope you all like this new page, and welcome to Craft Fest!