Hi De!
I have not. I would suspect that those valuable perfectly good hearts could and should be used for people with more years ahead of them if the Lord permits.
As the Apostle Paul said " I have fought a good fight, I have finished my course, I have kept the faith:
Henceforth there is laid up for me a crown of righteousness, which the Lord, the righteous judge, shall give me at that day: and not to me only, but unto all them also that love his appearing.
2 Timothy 4:7,8
This is where my mindset is at.