Objective: To make a light bulb terrarium, how do I add dirt and gravel after I've removed the top of the bulb and cleared out the inside of it?

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

Available choices: -- Use a funnel or a piece of paper shaped into a funnel, put the smaller end into the hole, and add the desired amount.; -- Use a funnel or a piece of paper shaped into a funnel, put the smaller end next to the hole, and add the desired amount.;
Use a funnel or a piece of paper shaped into a funnel, put the smaller end into the hole, and add the desired amount.