MR Safety: Urinary Drainage Devices

Are Foley catheters safe for MRI? 
Standard Foley catheter systems are composed of a rubber tube with an inflatable balloon cuff connected to an all-plastic external collection apparatus. They are thus considered MR Safe.
However, Foley catheters are occasionally clamped using ferromagnetic C-clamps and other devices that could act as projectiles in the MR environment. These should be replaced by nonmetallic clamps before scanning.  Additionally, some drainage bags may include a metallic clip which should be tested for ferromagnetic properties prior to entering the MRI suite (and not allowed to touch the patient in any case). 
Bard C Clamp
"MR Unsafe" Bard C-Clamp
"MR Conditional" temperature sensing foley catheter
Temperature-sensing Foley systems contain a wire embedded in the wall of the catheter with a small thermistor at the end to measure core body temperature. Most brands of these devices are considered MR Conditional ​ — conditions that include disconnecting all peripheral cables and electronics as well as running the catheter and wire in a straight configuration down the center of the table without touching the patient. A few brands are considered MR Unsafe by their manufacturers (likely for legal reasons rather than health ones), so always check the product website for the most up-to-date information.

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References
     DeRoyal Industries. Additional instructions for use in MR environments based on testing performed in 2004 according to ASTM F2052-02, Standard Test Method for Measurement of Magnetically Induced Displacement force on Passive Implants in the Magnetic Resonance Environment. Downloaded from deroyal.com 1 Jan 2021. (List of conditions for scanning their temperature-sensing Foley catheter).
Related Questions
     How about other GU devices like nephrostomy tubes and stents?