I thought about this during "free club rental" weekend.
On any regulation course I have ever played; there is a driving range, a practise green and a practise sandshot/chipping green.
For those players thinking about buying a wood, a club(s) or new balls; this would be a great format to "test" the equipment before purchase and avoid making all those excuses to others because you couldn't adjust to the new item!!
Of course a NOMINAL rental fee could be applied, and a time limit for usage.
I know I would use it, as I have often regretted a purchase that, in the end, just didn't work for me.
I do believe it would be a welcomed addition by the members and make the site more "user-friendly"
Just a thought.