This impromptu "Spray the Letter" game turned out to be really neat way to make learning fun for N (2 1/2).
B (5) wrote letters on the chalkboard (it was fun for him to be involved too).
Then, N sprayed the letter that I said.
I would say, "Spray the letter S" or "Spray the letter that says /s/" or "Spray D for Dad".
Not only was it a perfect way to sneak in a little letter practice, but the spray bottle is great for strengthening muscles in the hand and wrist to get her ready for writing.
Write letters on the driveway with sidewalk chalk and spray with a squirt gun.
Write letters with chalk on a fence and spray with the hose or squirt gun.
Write letters on the fence or on the driveway and toss water balloons to try to hit them.
Try this with: