Historical clue formulations

• The devil's workshop, it's said — 2025-01-08
• "The Devil's playthings" — 2018-11-09
• The devil's playthings, they say — 2017-02-23
• Proverbial tools for wrongdoing — 2016-02-20
• The devil's workshop, as the saying goes — 2015-06-21
• Supposed tools of the devil — 2008-07-05
• "The devil's tools" — 2006-03-03