With inspiration from old wooden pop guns I designed a 3D printed handle for a 20ml syringe.
All materials and tools you need:
1. Two 20ml syringes
2. Hot glue
3. Some strong cord
4. Sharp knife
5. 3D printer wit 25g of filament.
6. 3 x M3 x 16 screws+ nuts if you want to connect two halves of the handle.

1. 3D print handles.
2. Prepare plug by cutting it to arrow shape and add one hole for cord.
3. Cut hole to the main plunger and insert cord. Seal the cord and hole with hot glue
4. Attach cord to the plug.
5. Cut syringe barrel end off and insert plug and plunger into barrel.
6. Attach handles and enjoy popping!