This is a replica of the dagger used by Joker, the protagonist of Persona 5, designed to be as accurate as possible.

Most importantly, it can glow.

Materials needed:

• 70mm LED water-flow lamp + base (as shown below)
• 
• CR2032 battery case 3V (24mm*35mm)
• m2.5*12 screws 4 pieces
• Glue

Making steps:

• Print Plates 1 and 2 using black material;
• Print the two blades and hilt of Plate 3 using transparent material;
• Glue the two blades together, insert the LED light and base into the blades;

• Place the battery case in the tail of the hilt, adjust the wire length according to the length of the reserved wire groove, and connect it to the LED;

  

• Use glue and four m2.5*12 screws to secure the black shell and the transparent part (as shown below, blue circle: glue red circle: screws).