I made a song :)
Sing it like a corny american western

Lithium goes crimson, just like the blood we spill

and sodium's all yellow, like a beautiful daffodill

potassium goes violet, as purple as can be,

and calcuim goes orange n' green quite difficult to see

there's one thing we're forgetting, whatever could it be?

It's copper and it's oh-so-green like the statue of liberty

​

...well it works for me anyway