This is such an easy thing to make and will be a hit with your little ones. It's also very inexpensive to make which makes it a good idea to give to neighbors and friends.
You can find recipes for this just about anywhere, but it's really just Oats and Sprinkles.
Use as much or as little depending on how many you're making it for.
Pile some oats in a bowl, then sprinkle lots of holiday sprinkles on top. I also used the white sparkly sprinkles so that it will "sparkle" in the moonlight, making it easier for the reindeer to see. (you could substitute with some sugar).
Mix it all together and place in little bags. Easy as that!
I got the awesome ready to print labels here. You can download and print.
They have these directions on the back:
"Sprinkle on the lawn at night
the moon will make it sparkle bright
as Santa's reindeer fly and roam
this will guide them to your home"