If you're building a house from scratch, consider insulating it with straw bales or even denim.

FORBES: Magazine Article

Two days later Mitch and I were jumping straw bales, without any reins or stirrups, when I fell off and hit my head so hard I knocked myself out.

WSJ: A Horse-Crazy Girl's Separation Vacation

At the time of his dental work, Walker was still small and light enough to be operated on an improvised table made from planks of wood laid on straw bales.

BBC: How do you give a polar bear a 'medical'?

Hundreds of tonnes of household and business waste has been disguised as plastic-wrapped hay, straw or silage bales and dumped on farmland in Essex.

BBC: Bales of household waste