When she was at day care I glued glow-in-the-dark stars to her ceiling to surprise her with when she came home.
It's always bothered me when people just scatter them randomly! I measured the room, found true north, traced the current sky map onto a square paper, divided it into a grid, recreated the grid on the ceiling, and went about making constellations as realistic as a projection of a hemisphere onto a flat square would allow.
This way her ceiling is always the night sky of her birthday.
I got the laser pointer so we could lay in bed with the lights off and I could point at the stars on the ceiling and teach her how to identify constellations
This is how I made a very fun discovery: a laser pointer rapidly recharges the phosphorescence in glow-in-the-dark stars, so whenever you zap one it turns SUPER bright.
I feel like you could make a fun target-practice / learn-your-constellations game out of this!