This is a simple and easy project that will allow you to put some unused space to use in your bug out bag. Duct tape has unlimited value in a survival scenario, but it could be even more useful if fitted with some type of storage compartment of its own. All you have to do is wedge two plastic mint containers into the hole of the roll of tape and you have instant storage. I keep a wire saw in one side and a sewing kit in the other. However you can put anything you want such as a survival kit on one side and a fire starting kit on the other. The lids of these containers open fairly wide so it is easy to get things in and out of the container. The top will also pry off if needed. The space between the containers could also be used to place something small, but would not be easily accessible as you would have to pry the container out of the roll of tape.
maybe instead of 2 small ones
superglue the bottom of one all the way flush on one side and fit the lid on the opposite side so you have one big compartment
then you can store paracord and a lighter and stuff in it too