I created this invitation for my daughter's birthday, but thought it could be fun for a class party, too! When you download it, you will be taken to a PDF with an editable field for text, so you will need your own fun font. I use the AG Font SorryNotSorry.
There are two versions you can choose between. Also, you'll want to trim it down so that there isn't so much white space in the top and bottom margins.
Clipart Credit: Lovely Clementine, RamonaM Graphics, Avenie Digital
Font Credit: Amy Groesbeck Fonts