Our DC/Pre-school does this. Only we bring in snack for 1 day/month. On that day we're also supposed to provide a package of wipes or box of tissues.
Usually the snack is assigned, BUT since DS had FA's they always made it "Your Choice" which was difficult.
Typical Snacks at our DC are:
Teddy Grahams
Gold fish
Sausage
Cheese & Crackers
carrots & dip
bananas
grapes
apples
oranges
celery
fruit snacks
popcorn (this one surprised me for a 2-3 yo room)
yogurt
watermelon
jello
Some of the things we've done:
chocolate avacado pudding (for B-day snack/treat)
pretzels & Hummus
Fruit
Sweet potato fries - though they get soggy since I have to make them the night before and put them in the fridge...the kids love them though.
I'm sure there's others I can't think of!
Check to find out about food allergies AND if they allow homemade food. Some places only allow store bought to ensure they have ingredient lists.
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DS - Adopted by loving parents 1995
DS1 7/2009 ('Stachio)
DS2 9/2011 (Peanut)