Objective: How do you place moss inside the Marimo ball?

Which of the following solutions is more sound in terms of naive physics reasoning?

Pick from:
[-] After putting the water inside take a pair of tweezers and lower them into the bulb.
[-] After putting the water inside take a pair of q tips and lower them into the bulb.
After putting the water inside take a pair of tweezers and lower them into the bulb.