More language arts humor. This can be especially helpful in the younger grades to teach about the differences in punctuation, and to teach how to read with expression. Maybe students can make their own little "comic" between the comma and period.
Punctuation Celebration: This book can be used to teach punctuation, and specifically quotations. The children can do an activity where they pick their favorite punctuation mark and write a short haiku about it.
Put at writing center Tape 6 different MESSED UP sentences and glue them onto a tissue box. The kids “roll” the box, read the sentence, write it, and then revise it. Great for a writing center! (The tissue box dice thing is a great idea!
Daily paragraph with ten built-in errors of basic spelling, grammar, punctuation, or capitalization. Daily exposure is sure to cement some very important skills as it lays the foundation for improving students' test scores.
Teach English Punctuation System - This is from a college professor who is combatting punctuation "myths" kids pick up in school. It's a nice article. I like the how the "commas go where you breath" myth is debunked.