Many years ago, DM Scotty, who is a master of crafting inexpensive dungeon tiles, and many more crafting themes all aimed at his then 4e D&D games (all adaptable to
any miniatures game, of
any genre...), created the ProBoards forum found
here. The forum contains literally many thousands of posts on various crafting topics, far beyond what this forum covers. It also includes posts concerning painting miniatures. It is a cornucopia of miniatures-related, as well as all things fantasy, crafting goodness. In all fairness, the crafting techniques found on the DM's Crafting Forum, are adaptable to any genre, including historical miniatures gaming, not just fantasy/D&D-based games.
Sadly, after many years of postings by many luminaries of the D&D crafting genre, DM Scotty walked away from the incredible forum he built, in favor of FaceBook (FB). FB does not function properly for such crafting ideas to be easily found and shared due to the nature of its posts being pushed down with every new post. After said forum languished for multiple years, without any Administrators caring for it, the ProBoards administrators granted me the privilege of being made an administrator of it, to keep it functioning, preserving its incredible library of crafting ideas, techniques, and information extraordinaire.
If you have an interest in taking a deep dive into what can be crafted for your miniatures games, please visit
The DM's Craft Forum -- you will find more than a decade of posts, ideas, and topics far beyond what is covered here. Be forewarned, wargames crafting can quickly become an addiction. DM Scotty's videos are linked in, with discussions. Once you start down the wargames crafting rabbit hole, you will be down there for some time -- enjoy your journey.

Cheers!