Now, in this moment of re-awakening of interst by me, I try to post some of my ideas...for theme.
Architecture despite what could think, the generally outlook of great houses is not like the colon of Splynncryth
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Nails - generally hard MDC quills grown by special mutated short cactus. Generally each cactus can produce 2d6x10 quills per day. Each quill does have 1 MDC while the cactus have 50 MDC - Splicer carpenter can be equpped with lesser lving body armor equipped with quills
Glue - The Splicer glue is amazingly usefull tool. Enough strong to hold 700lb stone cube stuck to the roof. Is generatted by some special bacteria in anaerobic enviroment. The glue soldify very fast when exposed to air(half melee round), due the bacteria dying. Is shot by a bio gun with a special canister attached. The gun does have a normal trigger dislike normal bio-weapons and does contain enough glue for 50 shot, regenerate 2 shot of glue per minute. Glue can be stored in vacuum plastic jars for future use. This glue is often used in place of nails, and has foudn its wya in battle field too, being able to stop anything with a splcier/robotic strenght of 40 for a long time.
Resin - covered way too well in main book, resin is used in extensive way in Architecture, generally everywhere metal should be you'll fidn various colored resin, often gold, but favored colors include blue , earth like red, and purple.
Warm/Cool regulation system - A weird cyclindral worm like bio-tech device, with three big red eyes and toothless maw. The womr does not like being touched, but most amazingly react oddly to temperature change. If it feel cold it become very hot like a coal stove, while if exposed to hot environment it start to emit a freezing aura. A single worm coudl regulate the temperature of a room 14ftx14ft. As was said, the worms do not like being touched or handled , so they are placed in ceramic container, vaguely resembling snail's shell with handle bars. The worm is SDC being while the ceramic shell is MDC, so acting as defence too. Ceramic stoves are still used too.
Light - As i said optical fiber are still avaiable to humakind, albeit harder to produce, and don't forget old good neon gas(nanomachine plague said nothing about gasses...
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Hydraulic - Well this is one field that suffered a lot from the loss of alloys and metals. To make water run from one place to another, is only matte rof creating the right pressure, but metal tubes were the ebst medium for this. Anything else was or too frail or too "spongy". Bio-tech helped, trought some MDC Ivory tubes. Apart form this is pretty much identical to 21th century hydraulics, except for some details, like the filtering sponge a 30ft radius sponge, that absorb , filter and redirect gallons and gallons of water at water nodes, or the water tap that sniffing you know exactly how warm your water had to be. - A side note Splicer common life is not a diryt one, infact there are some zone of a Great house that are frigthenly clean! Dirt and Bacteria coudl be deadly to immature host armors ya know!
Next chapter Cooking in Splicer world...