if you ever felt anoyed like me about sandisk's pendrives then my shell for them is perfect solution for you. i scaled it down as much as it was posible so you can put them in usb slots next to each other. it will take you about 10 minutes to print one of them with 0.4mm nozzle

it's very easy to put together just put some super glue on the big chip of the pcb (othervise it's going to wigle) place it in the shell and superglue the cover on top

disclaimer:

pendrive can get warm