Try an A5 full colour mail shot. Photos of the woolly things on the front and all the text on the back and make in poignant, not a rainbow job.
Expensive? Doesn’t have to be, ask Mrs Knight
for assistance with funding, ask around the local print shops or ask a cartridge shop to sponsor it by donating ink and paper.
If your getting the training free how about approaching Ryddings School. Lots of potential guinea pigs there...