Last year, I saw the idea of having students take photos of the vocabulary for their homework. I later used their pictures on their vocabulary quizzes. However, I think that this technology twist would really amplify the assignment. They can go to Phrase It, and they can add a caption to their photos! Each student could add a sentence to the picture. It would also give them a way to photograph some harder words that are not as literal. On their quiz, I typically have students label the pictures. However, I could add a blank bubble and have students write a caption using the word from the picture.
Also, when I include pictures like this, I always add some extra to give students an option. For example, I may include 12 pictures, and the students have to write 10. There are always some words that we just completely forget. I like to give students some margin of error in this respect.