These were really inexpensive to make. First, I assembled the s'more using bakers twine to keep it all together. Then I placed it in small cellophane bags that I had left over from another project(I think I got them at Zurchers.) I made the labels in Photoshop, then printed and cut them out. Then, I just folded the top of the bag over and secured it with a kraft dot sticker on the back. I would have just stapled it, but I couldn't find my stapler :) I used double sided tape to secure the message to the front!
Here's the little flag I made. Feel free to download it if you like!