I would make a backpack with specialized compartments. Each compartment would be specially shaped and padded for holding different effects for street magic, it would come in handy indeed!
It's essentially been around for centuries. . . in the 80s we called it a Fanny Pack. . . it's usually a leather pouch that has holders for various effects and special loads. Once you learn how to work with it (as most of the more traditional buskers have done "forever") you will have more than a sufficiently sized arsenal at your disposal. Besides, packing around 1,001 props won't make you a "Magician"; learning how to do magic on the other hand. . .
My problem with this challenge is that when it comes to magic itself, I have fulfilled this dream on several levels and the next big step for me is getting some of my past creations on the market (that's a hint for anyone interested in making some nifty props). I do have the desire to finish up my Psychic Wheelchair(s) however; one is a Steampunk facade and the other is a specially modified replica of an 1890's era chair. I'm still interested in making up the
Zoltar and Santa Facades as well, but that's pretty much it.