how to making random repeat pattern using multiple objects

Hello guys,

I want to select multiple scattered objects, and make a seamless pattern out of these objects.

I'm looking for a technique that allows me to shuffle the placement of these objects in a random way,  but still come out with a perfect repeat. Then adjust the spacing, rotation and so on.

What tool or technique can someone suggest me? 

Thanks in advance, I'll apreciate any help!