Each one of these retro 3d printed robot's army have a slot for a USB pen drive. Print the entire army in sandstone (pictures), precious metals or plastic and have fun!!!
Fits kingston DTSe9 usb pendrive (not included) http://www.amazon.com/Kingston-Digital-DataTraveler-DTSE9H-16GBZET/dp/B00DYQYITG . Place a dab of resin glue on the end of the pen drive and insert in the slot to assemble. These little guys were built with Dr. Fluff's Robot Factory, a mobile application that allows you to create your own objects for 3d printing. Get it on Google Play: https://play.google.com/store/apps/details?id=com.thinkerthing.drfluffsrobotfactoryfree