Just found these and thought they were interesting:
http://www.lightscastle.com/product/outdoor-waterproof-long-range-led-flashlight-w-knife
I see there’s a few others on Amazon and Aliexpress but these two stood out.
Just noticed this one as well (same Ali store)
Looks pretty good too and the flashlight head kinda looks familiar:
The list of jokes this inspires would be TL;DR in seconds.
Here’s a thought: Buy yourself one of each & do a detailed, BLF-quality head-to-head shootout & post it here.
See if you can do a good enough job to inspire someone else to buy one. That would be interesting!
Good luck!
(PS: I’ll delete this post if you do, to keep the thread clean.)
yeah I also figured this would generate many “joke” posts. 
I really can’t see myself buying one, but being both a knife and flashlight collector it caught my interest. I only started the thread to inform others here who like myself didn’t know they existed, and see what discussion (and jokes) would ensue.
How about a flashlight with a hidden gun inside? 
interesting idea for a survival knife/flashlight, but i’m curious of the quality & strength.
Like the other one I mentioned the knife takes too long to deploy.lots of unscrewing.
Included batteries and chargers are possibly dangerous crap.
Where’s the link for the flashlight with the toothbrush inside. That was really cool.
This knife is only useful as a survival kit if you fill the rest of the tube with supplies and go bury it behind your hidden camp out in the woods.
I suspect that knife hidden in the light will fall foul to swordstick laws in any jurisdiction/country that prohibits them.
It might be fine as a survival tool.would want to pre test, preemptively modify and repair, ect.amd make sure its watertight.otherwise its just another cheap trinket like the stungun light.its innefective to folks who are not easily intimidated.
Relying on a knife that takes too long to deploy is just as foolish.dont know which I would laugh the most at if someone tried to assault me with them.