Being an admirer of you're work, I thought What a lovely start to the new year and an interesting story.
Some people, as my old dad would say, "Some people have more front than Brighton".
I must say, you really ought to charge a reasonable fee for materials, blades and something towards the machine wear and tear, drive belts etc, doing things for free sends out the wrong signals most of the time.
But what an opportunity for you're lovely work to be seen, Excellent!
Regards Rodders