For the goodie bags I used some cellophane bags from the Dollar Tree that had pink hearts and white daisies on them.  For each one I printed a tag with a clip art tiara on it and then the child's name (Princess Cassidy, Princess Allison, etc.).  I punched a hole in each tag and after filling the goodie bags I attached the tag to the wire used to close them with.  The goodie bags were filled with extra Mardi Gras beads, bracelets, and rings, hair elastics that said "Princess" on them, stick-on earrings, stickers, a book entitled "Fairy Princesses" that came with 20 tattoos, and candy, plus each child got to take home her coloring sheets, skirt, scarf, tiara, and whatever jewelry she had chosen from the Queen's Treasure Chest.  After the party we sent thank you notes.  I printed 4 different pictures of each girl and cut them out and used rubber cement to glue them on the front of a piece of cardstock and inside I wrote: "From one princess to another.  Thanks for coming to the castle.  We had a royal good time.  Thank you ever so much for _________" and had my daughter sign each one.