Modify 'parts of your ship have fallen' events to drop a small handful of 'rubble pods' (basically some new rubble graphic that is spaceship debris instead of rock). Don't mark what is inside of them until you send a colonist to check them out. Once a colonist explores, randomly assign or pre-assign them to be resources, tech, or recoverable furniture/buildings.. also, a small amount of metal is always there, since it's spaceship rubble. It adds more realism to a resource making it back from your wreck, and forces you to prioritize for the risk of random drops instead of knowing what's been just scattered across the map.
For example, 'Upon scouring the wreckage, your colonists find a source of food/missiles/etc has survived re-entry! They extract it from the tangled wreckage..' At which point the debris converts into whatever resource you've found and a small amount of metal.
Also, 'Upon scouring the wreckage, your colonists find that portions of the ship's communications array/galley/weapons system have survived re-entry! They disassemble it to move it home..' At which point the debris converts into a small amount of metal, and either the tech necessary to build something new (common), a pre-fab marker for something (average, carry to stockroom then free and instant build of whatever object), or a pre-fab marker for a souped-up version of something with alternative graphics (rare, carry to stockroom then free and instant build of 'salvaged from a spaceship' upgraded object)