Oh my gosh! I actually wanted to make one for the Grim Fandango remaster too! The Hit the Road one is my first attempt (because Sam and Max is the first thing I gravitated towards initially) and I started it a good while ago, like 8 months ago I think? I had to take a break from it when I hit the roadblock of the background map, plus I had to go abroad for an end of studies internship in January so this kind of took priority hahaha.
I wanted to see how the process of making the box would go before starting any other box. I am still abroad right now and don't have my tablet with me, I'll have to pick that project back up in August when I return so I don't think opening a thread right now would do anything haha!
However, when I get back to doing this, I'd love to document the process of actually putting the box together so maybe I'll ask if I can make a thread about it when I get to that!
If the process goes well and the boxes look good enough, I was thinking of making them for other lucasarts or non lucasarts games (I want to make one for the Neverhood because I feel like it) and making them available for anyone to download and print out at home as papercraft projects (I, for one want to make a tiny version for my Sam and Max figures to hold in their hands) or to make their own reproductions (for people like me who can't afford to buy a legitimate one off of ebay or even those whose boxes are damaged and can't be displayed).
Sorry for the ramble... TL; DR; I'd love to make reproduction boxes for more games and I'd love to make them available for everyone to print out at home.