Hey Gearbest! You have quite a list of minis. I'm placing a sizeable order today. Thanks for the link.
Current favorite mini: Nighthawk Bantam HB-62 black finish. AAAx1 twisty light. 2.9 inches long, my current smallest AAAx1 light. Weighs .49 ounces. Two mode 2.5/85 lumens. Early examples had some issues running on NiMH and preferred alky primaries. Mine runs just fine on eneloops. This is my second one.
Stock, it has no pocket clip. I added one from an old Lumapower AAAx1 with annoying low mode PWM and whine. I then added the smallest production folding knife to the pocket clip, the Rough Rider "Smallest of the small." Mine just barely fits a $100 bill wrapped around the battery, but this does not work with all cells due to space issues.
I feel it's the best EDC combo I've ever had (yet.) Super light, super minimalist.
One single, solitary drawback for me: No lithium-ion compatibility. Not bad! Just one thing "wrong" with it? That's pretty darn good compared to many lights.
Placing an order now for a bunch of minis.