Simple design just holds everything together solidly against the fabric.

Set on the right can accommodate up to 3; currently configured to hold 2 and a bolt in the empty spot to help hold it together.

Setup on the left can accommodate 4, currently holding 2, a bolt in an empty spot and a little led indicator hooked up to a USB spot on the pc so I'll know when everything is on. Kinda hacky but that's ok for now.

Left set is for the 5ghz pineapple add on. Right set is for alfa dongle attached to the pi.