In order to elevate vocabulary, students must associate known words with new words. In order to combat text-spelling and wording in formal papers, I did this project in class. Students "bury" a word that they use too much "a lot," etc. and replace it with its more educated synonyms. Students had a great time with this and it was great room decoration that served as reminders.
This packet includes the list of needed materials, time frame, step-by-step proceedures to follow and write on the board for students, and grading scale, in addition to 70+ words to use if you are stumped.