Create 20-sided dice with the amino acids.
Print, cut, fold and glue or tape.
There are three pages, for three different dice in all. The first has the amino acid names, the second, the 3-letter abbreviations and the 3rd has the chemical formula for each. Use whichever will help you learn the amino acids.
This could be a fun game, where you role the die and then draw (or name) the amino acid. Or roll multiple times to create lists of amino acids and design your own proteins.