Space-time continuum rupturing toaster

As well as making toast, a space-time continuum rupturing toaster presumably has nasty effects on reality.

Fiction

Rescue Bots cartoon

When Cody Burns arrived at the Griffin Rock laboratory, Doc Greene made a guess that the rescue team was bringing him a space-time continuum rupturing toaster. It turned out to be a mechanical bull, though Doc Greene claimed that was going to be his next guess. The Island of Misfit Tech