I always wanted a tipi when I was growing up. What  a wonderful place to escape -- to read, to play, to pretend. I think your boys would love one too.

I'd get a plain one (like the one above from <a href="http://moozlehome.com/index.php/Teepees/View-all-products.html">Moozlehome.com</a>) and let the kids decorate it to their hearts content.

FIND THEM: <a href="http://moozlehome.com/index.php/Teepees/View-all-products.html">Moozlehome.com</a>, <a href="http://www.hearthsong.com/productform.asp?q=teepee&amp;search_type=normal">Hearthsong</a>, <a href="http://www.landofnod.com/imaginary-play/toys-gifts/meet-me-in-the-teepee/f4836">Land of Nod</a> (also below)

<a href="http://frogandsnail.com/wp-content/uploads/2011/05/Kids-Imaginary-Play-Kids-Play-Teepee.png"><img class="alignnone size-full wp-image-981" title="Kids  Imaginary Play  Kids Play Teepee" src="http://frogandsnail.com/wp-content/uploads/2011/05/Kids-Imaginary-Play-Kids-Play-Teepee.png" alt="" width="463" height="465" /></a>