Just get one of these. It has glowing reviews...
Condom
Make one of the side-panels of the knife into a replaceable ferrocerium panel. This can be struck with almost any hard object such as a stone to produce sparks for fire lighting. A significant and potentially lifesaving addition to the knife. The panel needs to be replaceable as the ferrocerium is consumed in use. However, fire lighting is not a frequent activity for most people so a panel would normally last for many years.
Bit expensive when you include the van a driver needed to carry it!!!
Just get one of these. It has glowing reviews...
That could be useful if you do a lot of outdoorsy stuff. It's a trade off though. What would you find most useful: the mini screwdriver which lives in the corkscrew attachment, or this? It looks like you couldn't accommodate both.
Do they have one of those engine cut off switches that UFOs and people like MI5 have on the TV
you know - the ones that you point at the car and it messes up the engine management system and the car comes to a stop
there have been a few times where I could have used one of them!
Tyre levers along with a fold up van to recover bike home in if needed?