Here is what I started with:
In this batch we had pretzels, marshmallows, several mostly eaten bags of cereal (don't you hate when there isn't enough to to have a bowl, but too much to throw away), cheese puffs, a crushed pack of ice cream cones, several single serving snack bags, vanilla wafers, graham crackers, and crushed up Christmas sugar cookies. Other ideas we've added in the past are nuts & chocolate chips. It's really just for whatever you have laying around. We also almost always add freshly popped popcorn. The heat from it causes the crumbs to stick to it, which creates a great flavor.
We dump all the ingredients in a clean trash bag and mix. (We all love this part!)
And this was what we ended up with:
I use a soup ladle to fill cheap ziplock bags 1/2 way to create take and go bags for the kids. This batch made 30 bags.
This is a great money saver since most of these items would've ended up in the trash anyways. The kids love it! Enjoy!