ventshade for insight

I have searched the internet several times...but alas, no one sells a ventshade for the insight.

For those out of touch: Ventshade is the plastic dealies you put on your window sill so you can open the window without wind or rain getting in.

So.....anyone have any ideas where to look???

thanks in advance....

"took my insight at 16k miles @43.3 mpg.....at 50k my average is 54.7 mpg .....what was the last guy doing?"