The polymer grip version is a bit lighter and seems sturdy enough but I prefer metal. You could literally take this out of your pocket and put it on a table (folded of course) and most people would not know what it is. The multi-color ones are even more baffling to non-gun owner types.
@Hvymax Derringers and micro revolvers just never grew on me. I tried them but no joy. I find derringers too heavy and bulky for the limited payload they deliver. I consider micro revolvers a negligent discharge waiting to happen. Parking the hammer in-between rounds on the cylinder? No thanks. I know that some swear by them. It's a preference I guess. Like how I would eat a pile of shit before eating meatloaf. I can't even stand the smell of it cooking.
The cylinder on a North American Arms mini revolver I once owned flew off the gun when I fired it. The cylinder pin was in some way defective. They sent me a new part and it worked fine after that, but there's no way I would ever consider it dependable. It went in the safe and stayed there as a novelty gun that's cool to look at but I'd never carry. Same goes for the Bond. A well made gun. It never failed or had any sort of problem. It's just too bulky for being limited to two rounds.
In the novelty category, I have a Heizer single shot 5.56. Also a 45 and a 9mm Double Tap, which like the Heizer are essentially space-age interpretation two shot Derringers. I dont think either are made anymore and for good reason. They are reasonably reliable but totally suck from an ergonomic perspective.
In the really small gun category, I think nothing beats Ruger and Beretta. Super reliable, easy to shoot. I'm especially fond of the Tomcat/Bobcat tilt barrels. Ruger LCP... nothing better in the plastic pocket gun realm. Although it pains me to utter the name Taurus, the TCP was an outstanding pocket gun. A range owner told me the TCP was the most durable, trouble free rental gun they ever offered. Good for 20k rounds. I had one until the mag latch wore out and when the barely English speaking Taurus support a-hole refused to sell me the part, I was not happy.