duvet cover + fan = fort
How to Make a Fan Fort! #kidactivities
Image titled Make a Fan Fort Step 5
How to make an Air Fort (of awesomeness!) - Preschool Activities and Printables
All for the Boys - Fan Fort / Bubble
Her mit der kühlen Luft! http://www.pinksugarland.com/wordpress/wp-content/uploads/2013/07/07031.jpg
playhouse with sandbox below
DIY Air Fort -- Make a neat fort with a bed sheet and a fan! Kids will love this easy play idea!
OMG I pinning this because really I want to do it, but you could have fun with Jacob too. :-)
I used to make this "Fan fort" all the time when I was a kid. A sheet over the air conditioning vent,held down by books or stuffed animals. Leave a hole to crawl in, and viola!