the spaghetti monster is basically the idea to use 3.5mm audio sockets and cables to make 2/3/4-way connections between the gpio pins of a microcontroller board and textile/wearable sensors & actuators mounted around the body.
specifically a first instance of this idea was designed to breakout 6 analog pins of an ESP32 Devboard to connect to textile sensors. in this first design we mounted potis on the ESP breakoutboard so that the mini aux breakoouts mounted on the sensor side are mono (2-way). but because audio cables have 3 connections it would also lend itself to mounting the pull-up/voltage dividing poti on the sensor side.

photos >> https://www.flickr.com/photos/plusea/albums/72157719958295195

Bill of Materials (BOM)
3.5mm Aux Jacks:
https://www.segor.de/#Q=KLBU3%252C5ST%252FMini1&M=1
https://www.reichelt.de/at/en/jack-panel-socket-3-5-mm-stereo-angled-pcb-lum-1503-07-p116184.html

PT 6-L 250K Setting potentiometer, horizontal, 6mm, 250 K-Ohm:
we used 250K Ohm for our textile sensors, but you could also select a different value depending on the range of your sensors.
https://www.segor.de/#Q=PT6KV-250k&M=1
https://www.reichelt.de/at/en/setting-potentiometer-horizontal-6mm-100-k-ohm-pt-6-l-100k-p14981.html

poti knobs PRK 6ws:
https://www.segor.de/#Q=PRK6ws-10x&M=1

3.5 mm Male to Male Audio Jack Cable (mono or stereo)
spiral cables can be nice!
search online for “patching cables”