i love exploits for consoles and stuff that use Household Objects. every example i can think of is a nintendo console actually but like
early switches were defeated with a paperclip
the endgame of 3DS hacking ("we completely own this hardware from the moment it boots") was achieved with a fridge magnet
early progress into pwning the wii came using a pair of tweezers
switch paperclip: grounding one of the pins of the right joycon rail on launch model switches puts you into a debug mode or something and you just have full control
3DS fridge magnet: if you boot a 3DS while it's in sleep mode and with start+select+x held held, it tries to install firmware from the cartridge slot, trusting it completely. you can just have a flashcart there with whatever you want on it. of course, to put a 3DS in sleep mode, you close it, losing access to the buttons... or you just put a fridge magnet on the sensor so it thinks it's closed
EDIT: both the switch and 3DS things here are a little false, and reality is actually cooler. thanks @sys64738 for more info: https://hellsite.site/@sys64738/110034530470284730
wii tweezers: i'm fuzzy on this one but it involved bridging RAM together electronically. i have in my head that they used it to monitor wii memory via a hacked gamecube, but it also might have been just bridging protected addresses to ones they could get to. i really don't remember sadly
EDIT: and thanks to @ChlorideCull and @ipg for clearing this up what this was about: https://wetdry.world/@ipg/110034544651871869
@ChlorideCull thank you!! that makes sense