This is a sister thread to Yppej's "Old Things" thread. Very similar but a different twist. Name something that you use or used, but you have to or had to jury-rig to use it, but you don't throw it out because it still works? Or, in the words of my Scottish MIL, who used to say this often when she was still using broken things--"Acchhh, it's fine. There's nothin' wrang wi' it."
We've had several cars that fit that category: the most memorable was the old Chevy Celebrity that couldn't go in reverse. For months we had to be very careful about where we parked or how close behind another car we were because the rear gear was broken. Talk about stressful driving!
Any others?