I don't know if many of you are familiar with Lego Digital Designer (
http://ldd.lego.com/en-us/), but it's a free program from Lego that, well, is basically like owning a bottomless bin of Legos on your computer.
I did a little research the other day and I found out that there's a way to import the 3D models into 3Ds Max (
https://www.youtube.com/watch?v=gUlSqO3pnnk.)
No, I haven't personally tried this yet, but I might one of these days when I get the chance. I just think it would be cool to make a stage in LDD then importing it into Brawl, and it might be a lot easier to make custom stages that way, too.
Also, upon further research, I found a site that has a bunch of the official Lego sets already built in LDD (
http://www.eurobricks.com/forum/index.php?showtopic=41226. Just imagine fighting on Fort Legoredo or whatever classic sets you might have had!
Damn it, now I want to go play with Legos. I miss being a kid...