firstly i sketched a flightcase in blender and 3d printed it in white, then i printed all the accessories in black, like the locking clip, and a bunch of decorative pieces.
then in the buttom of the case, i had made holes for nuts to me pitted, just small enough that they wouldnt snap in place, but instead be melted into the case itself.
I fitted the LED's with wires, and inserted them in the four slots inside the case, And proceeded to glue the wires to the inside, then the ON/OFF button was placed, it would short and break the connecten from the negative end of the coin battery, to the rest of the circuit.
I cut and superglued some faux leather for the inside of the case to help protect the glasses.
finally i glued on the decorative pieces, and added on the locking clip, the hinges for both the clip and for the backside was made with a piece of black 1.75mm PLA.
I did'nt add a resistor to the LED's since its just a 3V coin battery in series with 4 parall