I usually carry in stock things like poly-plates, various KFS, torches, pocket knives, carabinas, fire-starters, emergency mirror / blanket / whistle etc.

Torches from £7	Nesting Billy Can Set £20
Goretex Bivvy Bag £30	Sleeping bags from £30
Carabina £1 each	Paracord (various lengths / thicknesses)
Knife / Fork / Spoon (various styles) from £3)	Portable cooker £6
Pair of tin openers £3	'58 Pat Waterbottle from £5

Far too much other stuff to list here; please contact me if there's anything you are specifically looking for or check-out Thatchreed's miscellaneous accessories and send me the product code and I'll do the rest :-)