Custom fabric design for men\'s shirt

I need to design a pattern for a men's Hawaiian shirt (size XL). The shirt will include 7 logos (and yes, I have the rights to use all 7 logos). I want the logos arranged so that custom fabric with the design can be created and used to make the shirt. A "seamless pattern" is needed for this project. The design should be on a transparent background so that I have the ability to print the design on different background colors. For the purposes of developing the designs, I would suggest using (1) a black background with the images in gold or (2) a maroon background with the images in gold or (3) a blue background with the images in gold. The logos can be different sizes and can be rotated to create a more stylish design. (Try to maintain some balance so that one logo is not huge and the others tiny.) Please use the black and white versions of the attached logos when creating the design.