Farewell, Adios, See Ya Later Alligator

I copied this picture to eventually make my own poster which I haven't yet. I don't know where I borrowed it from and the only post I could find on FB, where I get a lot of my ideas lately, credits someone named Amber Nielsen with the idea but I couldn't find her original post. So this may be her picture, may not. It's sung to the tune of "Hello Song" CS 260