Making a perfect dnd campaign.

Hello everyone! Recently me and my friend's have been planning a dnd campaign which we want to be perfect or really really enjyoble, for that we want to create things like props, minifigs, and a whole field or map as well as 3d minis for caves or trees.

The question I have for you all today is what dnd props do you usually use in your games ( both personal and props for the table ) and how do you create them as well as how do I create mini environment elements or minifigs ( we all have 2d arts but we haven't been able to found something 3d that is close, and I do have a friend with a 3d printer if that changes anything )

Thank you so much all (: