I must say that diffusing light using a milk carton is going to give you a nasty grey tint and kill the crap out of a bunch of lumens needlessly .
I've also seen Vestureofbloods video with him making an ice cream pail lantern/ diffuser and while i think it's creatively interesting. I've been there and done that ,Same dead dull grey tint .it's not a great look . I've shot light thru 100's of materials and am known to be picky.. especially when it comes to tint. I say this not so much to sell you something ,but rather to keep you from suffering bad diffusion ,
https://budgetlightforum.com/t/-/35838
I also sell 5 other types of diffuser materials besides Dc-fix .
Some thicker some with & without adhesive
PM me ...
There : that was my yearly sales pitch