Unless you have perfect penmanship, use a computer to develop written items for your display.
Penmanship, if taught at all, is best taught using fat crayons or short and stubby pencils, as it forces their little fingers to hold the pencil correctly rather than grabbing it with their whole fist.
You may think you have to send love letters on linen paper, written in flowing penmanship.
This is excellent practice for both penmanship and for rhyming!
Be very careful when filling out order forms, make sure penmanship is impeccable and legible.