Hole punching — I used a wooden skewer with a few rubber
bands wrapped around them. You can also off them a push
pin (this how some Montessori schools do it).
For a while my 5 year old LOVED doing these. I had to make
all kinds of Star Wars star fighter, jet and other “dot pictures”
(while my 3 year old wanted butterflies, balloons, fairies and
so forth). This activity has expanded from these first simple
dot pictures I showed below!