Very interesting ideas here. I've had players who struggle with coming up with visuals for constructed weapons like this in the past though, so I think an extra table of tags for visuals would really help. For example, I roll twice and get SWAMP and URBAN? That could be some aztec-style design where the weapon when not used looks like a small temple but when needed the squares expand into the full form? Just some ideas, love the submission so it got me thinking :D