Hangers to Bag Clips/clothes Pins/etc. - Upcycle.

Gratuitous retail clothes hanger, clip style.

Using a dremel cutoff tool, or other type tool, separate the useful part of the 'clip'.  Leave enough excess to avoid cutting into the 'meat'.

Using the cutoff tool, you can take off larger chunks and corners.  The cutoff tool has left many melt-burrs, use a small utility knife or exacto knife to remove them, carefully.  If you are a perfectionist (I am), a lightly applied lighter makes quick work of any small flakes/burrs leftover - though I imagine any heated plastic has some toxic risk, I can't imagine the fumes being worse than walking near light traffic.

After rinsing/washing for one last ick/germ barrier, apply to unfinished bagel supply.

There are plenty of application for these, let me know if you have any non-bagel ideas.