I mostly ghostwrote these letters. That is, I wrote them and they signed them. However, I think it was a valuable lesson for me, and if a student asks me to write a letter of recommendation I try to turn it into a valuable exercise for them, too. See below.
These were written in 2005-6 at Chinmin and 16 years later in 2021 at NUU.
This idea is not new. Get the recomendee to write the letter.