luggage tag print in place bag hanger

One version with hanger / one just with slot if you want to use a zip tie - maybe 3D printed:

https://makerworld.com/en/models/557344?from=search#profileId-478035 I've modified the design by removing all but the first three teeth to prevent it from getting too tight.

Two color print. Best material to use is PETG. I tried with PLA works OK as well. Just bend as long as the print is hot or use hot water to soften the material for bending.