Use these A-B-C-D cards for multiple choice questions you present to the class. Each student could have their own set or you can print them and have them for class sets.
Print these on different color card stock. Each letter could be on a different color. This would make each letter distinguishable even if a student holds it up backwards or has it laid on their desk up-side down by mistake.
You can also laminate them, cut them out and glue them on popsicle sticks.
Fully editable in MS Word