Upgrade your reclaimed boxes and gift bags by adding sturdy wire handles. Use...

https://nova-wiki.win/index.php/Jute_Twine_Wrap_for_Wire_Handles:_What_Thickness_Looks_Right%3F

Upgrade your reclaimed boxes and gift bags by adding sturdy wire handles. Use 2-3 mm galvanized wire for strength that won't rust, and punch 3-3.5 mm holes for a snug fit