These Provocraft Stand-Out stickers were perfect for these First Day at School cards and at only 29p a packet (from HobbyCrafts sale), I got two packets, and went the whole hog and used all the embellishments per pack on each card.
I’ve used a red and blue gingham backing paper, so perhaps, (but not wishing to stereotype) one could be for a girl and the other a boy.
Every year I say that I ought to make more First Day at School cards, as it’s not the sort of card you see in many shops. It’s something I’m sure grandparents etc. would love to send to mark such a special occasion.