After reading all about frogs, we came up with a list of adjectives, verbs and phrases and then the students chose which ones they wanted to use for their Cinquain poem. We used the same word for the title (frog) and the synonym at the end (amphibian)...which I thought was close enough.
Here is a Cinquain Poem Graphic Organizer
We used this to help us draw our frogs and then we water colored them.