Let me let the coli in on a little secret - i've worked on dozens of video shoots, some of them naturally had dudes tossing money and holding racks etc etc..
you can order these bills off ebay and they look eerily like
real 100 dollar bills. they look so real that you have to look close up on them to read the fine print where it says "hollywood money" and the serial numbers are the same.
we caught video models holding these bills up all the time
Prop Money NEW $50,000 Highly Realistic Filler Prop Stack Great for Filming | eBay
you can get a stack like this for 25 dollars. and if you thumb through it, they all look like this, no blank white bills: