There's nothing new to say about LEGO: they're awesome, they're fun, and they're surprisingly strong...as long as you don't ask them to bear much weight. So, they're a perfect pick for simple, tongue-in-cheek style organizers, like this utensil caddy spotted on a home tour on Houzz.com. Since the organizer's job is simply to keep the tools contained, the LEGOs are a perfect fit, adding a bit of personality and color.
This technique would also work equally well for a lightweight, multi-compartment desk organizer, a place to store your daily carry items (wallet, watch, phone, etc), and the like. Post your ideas in the comments below.