Step 1: So I Decided on a Compact Sewing Kit
3-5 feet of thread
Needle nose players
Step 2: Prepare Your Needle
After threading the needle cut a 1/2" piece from the middle of the q-tip. This serves two purposes it guards the packaging from being punctured by the needle and is the spool for the thread attached to your needle.
Place the sharp end in the Q tip section and wrap the thread around the outside of the q tip then place it inside the straw. Cut a small slit in the opposite side to place the last bit of thread to keep it taunt.
The last step is to seal it with pliers and a lighter!
I'm sure much more thread could be placed inside but 3 feet is plenty for most buttons, rips and tears. As I said before with the right thread and needle this could also serve as a suture kit in survival situations.