These particular bags just had a thin piece of tape holding the handle down (which I couldn't see at the store as there was a paper wrapper holding them in packages of three).
I cut the tape and peeled it off the handle...
...hot glued the handle back in place...
...and then covered the whole thing with a layer of packing tape.
Times two sides per bag.
Times 35 bags. What else was I supposed to do with them?
But my lesson is learned, and after I use them up I will be returning to the fabric bags I have been making the whole time the paper bags were in the "to fix" pile.