OMG! What a great thread!
Pruning/ deadheading the roses.
Cutting the thick gauge wire of the extension cord.
Every kind of paper you can imagine.
I kept catching them in the act, and hollering at them because they wouldn't put the bad set away in the same place every time so when they went to find them, they couldn't! Can't count the number of times I went looking and couldn't find them. Finally they grew up and left the house (and I can find the scissors all the time now).