Donate a guitar

I have donated a guitar to my daughter's class as requested by her class teacher. I was actually reluctant to get the guitar because i initially decided to get orff instruments which are more cheaper than her mentioned guitar for her class, but since her teacher called me and had a long wind talked to me, so off i agreed to donate a good quality and expensive guitar to them. The bad part is, we can't take back the guitar even the semester ends.