Rules for mail to an inmate per MI DOC:
Write the inmate's name and number on every page of the letter, as well as your own return address. They won't pass it through without both. No colored paper, markers/crayons, tape, glitter, glue, staples, lipstick, etc. If you send a photo, they have new rules -- print photos only on plain white paper, not cardstock and not photo paper. Assume your letter will be opened and read. The full rules are on the DOC website.
I am including the photo rules/details, but I wouldn't send a picture of Dani without her family's permission.