I know that compared with some of the masterpieces posted here this is very small stuff, but here some "repair" conversions I did.
The guy on the right lost his helmet hand and the sponge on his stick.
I replaced the hand with a plastic one cut from a warrior arm, and the sponge is just the end of a QTip shaped and hardened with PVA glue. Next to his twin you can see that he looks the part rather well
This 2 models were a bit more complicated, especially since the attachment points were miniscule.
The miner's pickaxe on the right lost its tip, which I turned into a hammer with a couple of leftover plastic cut-offs (the cuff from the first arm I sacrificed for the guy above plus some other medallion bit). It turned out pretty well and I'm certain it will look natural once painted.
the guy on the left (last miniature
in this kit had already lost the tip of his botefeux and while turning it into a spear or large shovel made the most sense, the breaking point is on a slant and attached to his his fist so I ended up using the cannon shield. it kind of looks like one of those stop signs used by construction crews to direct traffic, but it works well enough.