Here's a few kits I built about 30 years ago. They are definitely not professional quality, and are sold "as is", no guarantees regarding quality or accuracy. They all have some flaws, so maybe you can use them for wargaming or BB gun target practice...

I'm selling this set of seven models for $21.00 (yes, all in one batch), which includes shipping in the US. Foreign buyers will have to pay extra for shipping. I will also throw in the old Airfix bagged kit header cards for the five single-engined planes.

The old ME Bf 109G armed with rockets....and decal yellowing.

An old FW 190D....also has decal yellowing...

a ME 262, with balast added so it rests on the nosewheel. There are scratches on the canopy.

another Me262, also balanced. Also scratched canopy.

The old Lightning P38J kit, also balanced with ballast.

an old P51D Mustang kit. Yes, I put the name/model decals on the kit.

and finally, the old Mosquito kit.