Mylar-like reflective from party store??

So guys.. you think if I went to a local party store I could get some sort of mylar-like table cloth? Or if I bought one of those big shiny balloons and cut it open and used the "inside" of the balloon --- you think that would work?

Right now I have my box painted totally white inside using some leftover paint from painting trim in my house... How much will reflective walls add?

get a solar blanket from walmart them ballons get expensive

Solar blanket? Is that anything like the fire blanket?

If so, I hear those have heat issues.

Walmart.com: Heritage Solar Blanket for Round Pools: Outdoor Play

.. a pool cover?

no its actually called a emergency blanket i use it with no heat problems it looks like this.

You will come out cheaper using that that wrapping paper with the shiny back. Same store, comes in rolls.

Yeah.. my girl and I have looked at every damn store for that wrapping paper... Walmart, linens and things... Plus whatever stores she goes to all the time.

I am going to try the party store today for some of the wrapping paper or something like it.

For those who care... I went to the party store and found some mylar wrapping paper... I could either buy a big ass roll for $25 or buy it per foot...

I got all I needed at 15cents per sq. ft. Which, I for one thought was a good deal seeing as I dont need an entire roll. Just needed 16 sq ft... Got it for $5

Works better than foil and cost effective