Open 6 of the Teddy Grahams snack packs, and stand them up in a container for filling.
Roughly chop 3 chocolate bars.
Add miniature marshmallows and chocolate bar chunks to each pack.
Take the remaining Teddy Grahams pack, and add a few cookies to each bag.
Enjoy, or, if you are outside camping, swimming, etc.. leave the bags in the heat for about 15 minutes for the chocolate to melt, then enjoy.
Notes
You could assemble this snack mix in disposable cup or sandwich bag with graham cracker cereal like Golden Grahams or cut up graham crackers.While snack-sized bags are convenient, you can also use small mason jars, paper cups, or even edible waffle cones for a fun presentation.