StudioVerma

Hey, often I need to position an object very randomly. This time it is to create a 'confetti' effect, see attached image. What I usually do it duplicate array a symbol and rotate it in multiple planes, then Im just dragging a dropping random groupings until it looks okay. My question is, is there a smarter way to do this so I can duplicate array a 3D object completely random within a defined space? Thanks your time! Cheers Sam