It will be no surprise to those who know me here, but my current favorite is definitely what the OP refers to as "toy colors", and I have no problem with that term. In fact, I embrace it. In an interview with Tim Reeve recently, he made mention that alot of knives these days look like someone "threw up their Fruit Loops"

. He obviously didn't mean it as a compliment, but I actually thought it was kinda funny, and have no problem with people feeling that way (although, truth be told, I've always been more of a Fruity Pebbles guy).
The funny thing is, in my daily attire I still tend to wear earth tones much of the time. Plenty of OD green, plenty of camo, brown, leather boots in the winter and leather OluKai in the summer. I often contrast this though with a pop of bright color somewhere, bright colors in my knife/lanyard, and even in my watch strap from time to time. It's not for everyone, but it works for me, and has become somewhat of a signature look for me. Besides, I'm not taking style advice from a guy who walked into the store and picked out THOSE glasses

(nothing against Tim, just a lighthearted jab).
I honestly couldn't even tell you why I'm drawn to these colors. It's almost like I went back to liking the same thing I wore in elementary school, both camo and bright colors. I will reiterate that the bright colors do come in handy to keep things from getting misplaced in the outdoors, but that's not my only reasoning. Idunno. Maybe it's just all the mushrooms