These are some party invitations I made for a 10 year girls birthday party and they turned out pretty stinking cute. Since the theme is camping I had the idea to make each invite a s'mores kit.
With some inspiration from the web, I grabbed the clip art from thinkstock.com, downloaded a font called Pinewood and used Publisher to put it together.
For the actual invites I used vellum envelopes from Hobby Lobby. I printed off the above design on cardstock, filled the envelopes with s'mores goodies, then stapled the topper to the envelope. I used tape to secure the envelope shut.