Lego combat shield that clips on to the minifigure's hands. It can hold the whole shield or the shield and a gun to maximize coolness. You can print it with or without Lego spaceman logo. It fits in between the studs on a Lego baseplate so it can be used as a wall.

Print instructions: Print flat on bed, logo side down. Infill not important, no supports or brim needed. You may need to scale model in slicer based on filament type, but it should be fine.