Ideas for fluffing up a mailpiece and staying under 1 oz

[Sean Dezoysa]

What ideas do you guys have for adding lumpiness to a mailpiece without too much cost or weight? I want to stay under 1 oz to get the first class letter rate. 

I have a couple ideas though they are at the rough stage:

- Small piece of cloth/rags from goodwill ("turn your beat up house from rags to cash")

- Styrofoam out of a big box store dumpster ("House sitting on a flimsy foundation?")

I'm lukewarm on both of these at the moment, I think there are better tie ins. Also, if you guys think this would upset people I'm open to hearing about that potential drawback as well. A friend has made other goofy items work in another industry although they weren't as cheap as what I propose. He said lumpiness really makes a difference by the way.