Give your reclaimed boxes and bags a sturdy, practical upgrade by adding wire...

https://star-wiki.win/index.php/Will_Floral_Wire_Work_for_a_Storage_Box_Handle_or_Will_It_Snap%3F

Give your reclaimed boxes and bags a sturdy, practical upgrade by adding wire handles. Use 2-3 mm galvanized wire for strength and durability. Drill 3-3.5 mm holes to fit the wire smoothly without damaging the material