UNLESS OTHERWISE STATED IN THE DESCRIPTION OF A SUBMISSION, I give everyone full permission to use any of my builds for whatever purpose as long as:
1: You do not claim them or an edited version of any of them as your own work, make vague claims that could easily be interpreted as such, or reupload anything from them even if you edit or link back to the original.
2: You're making no sort of monetary profit off of them unless you specifically commissioned a build for that purpose.

You don't even have to ask me beforehand as long as you follow those two things.