STILL A PROBLEM (
I finally had the time to open up the balloon I bought
When I saw the inside I was going NOOOOOOOOOOOOOOOOOOOOOO
Even straightened it didn't really reflect much
Out of desperation and out of other options, I went ahead and tried putting clear nail polish on it
You can kinda see a white smudge there. At first it was drying clear then I saw a tiny smear in the middle so I started to blow on it then this happened
Then I tried Tamiya acrylic gloss
The circled part is one part of the edge of the glossed part. It did go clearer a bit and shinier I guess but still not reflective.
I went ahead and took a picture of aluminum foil as well just to check if it was reflective of just blurry
I'll probably leave it as is because evenif I found something reflective, I still don't know how I'd open up the mirror frame with breaking it. It's plastic welded together.