How to Keep the Countries of Central America Straight

I struggled with the geography of Central America for a long time.  Honestly, it wasn't until I visited Costa Rica and the area meant something to me personally that the countries finally fell into place in the puzzle for me.

We practice with maps over several days but my Spanish I students still mix up the countries (not a surprise to me).  So...I came up with a sentence to help them remember the correct order of the countries: Girls eat hamburgers, nachos, and chips.

Here's how it works:

Girls = Guatemala
Eat = El Salvador
Hamburgers = Honduras
Nachos = Nicaragua
Chips = Costa Rica, Panama.

Students just use the sentence to go down through Central America, hopping from one country to the next.

Some of my students did not like that I combined Costa Rica and Panama in one food (I was trying to keep it shorter) so we changed the sentence to Girls Eat Hamburgers, Nachos, Chips, and Popcorn (or Pizza depending on the kid).

Later in my next Spanish I class when I noticed some students mixing up Costa Rica with other "C" countries, I made a note to use a different sentence next year: Girls Eat Hamburgers, Nachos, and Crunchy Popcorn.  I hope that using "crunchy" will connect to Costa Rica better.

Do you have any ideas to help students remember the locations of Spanish-speaking countries?

Edit:   Look what I found while grading these tests!  (written near "Map 2," sorry that it is sideways)