The braided cord on the NSA pull tab dangling from my belt pack has a monofilament core:
The Basement Laboratory Warehouse Wing doesn’t have an exact replacement, but braided nylon fishing line should come close:
If I keep a closer watch on the situation, maybe I can replace the cord before the tab goes missing…
The Smell of Molten Projects in the Morning 
A fisherman caught a pike, which had eaten the fisherman’s spring hook (don’t know English term), but the picture will tell. The hook was inside pike’s belly for two years.
http://www.iltasanomat.fi/kotimaa/art-1288512125697.html
That is one mean-looking fish… and “hook”, too, for that matter.
Once found a juvenile Common Goldeneye in pike’s belly.