Does rhetoric using threats and bribery make for a more convincing point of view?

No. There's an old saying, and it applies to actions and writing, too:

http://www.bartleby.com/59/3/youcancatchm.html

=)

I need a simile for "her eyes are as big as her bubbly toes"

To find a simile for "her eyes are as big as her bubbly toes," you can think of something else that shares a similar comparison. A simile is a figure of speech that compares two different things using the words "like" or "as." So, in this case, you are comparing the size of the person's eyes to the size of their bubbly toes. Here's an example:

"Her eyes are as big as saucers."

To find similes in general, you can use your imagination to think of different objects, actions, or characteristics that might be similar to the subject you want to describe. You can also use online simile dictionaries or phrase books to explore different options.