Ok, you all helped me out with the letter "K," so lets see what you
can do with "V."

My son's kindergarten class has a snack according to the letter of the
alphabet that they are studying that week.  At the open house, my
practical joking husband signed me up for the letter K. The generous
folks here helped me out with Kix Bars, Kelp(!), and Krispy Creme
donuts.  Well, now my husband has struck again and signed me up for
the letter V.  I have thought of vanilla wafers, vegetables, vegetable
soup and venison.  Can you think of anything else suitable for 5 year
olds to snack on?

Here are some:

Van de Kamp Fish Sticks 
Vegetable Thins Crackers 
Velveeta Cheese 
Vienna Fingers 
Vivant Zesty Vegetable Crackers 
Veal
Vanilla ice cream
Vegan Chocolate Chunk Cookies
Vice Versas Chocolate Bar

I hope that helps.

Best regards,
Rainbow

Vegemite requires a video camera be used to record the reaction.

Velvet cake. Mmmmm

Vienna Sausages. Way, way different than Vienna Fingers.

Veryfine juice products (probably preferable to V-8).

I'm dying to see how veal and venison are explained to the children.

Vichyssoise (cold potato leek soup)
Vichy Water
Victoria Plums
Victoria Cake
Vol-au-vents
Vermouth
Vodka
Vinaigrette
Vermicelli

You've got to talk to him before he goes to another meeting.  ;)

I would stick to Vegetables:  carrot and cucumber sticks, raw
cauliflower bits, etc., maybe with a dip.  If the kids don't seem
interested, you can tell them that grownups eat them at parties.

Myoarin, you can use that logic with Mikomoro's vodka and vermouth as
well. Imagine a roomful of kindergarteners tight as owls.

Mark, 
But I didn't, I even stopped short of suggesting to tell them what kind of parties.
Actually, the five year-olds might like vegemite  - spread thin on toast.
If no one told them what most non-Aussies think of it, it might be an
attractive contrast to all the sweets.

Anything Vegetarian ie Vegatarian hot dogs, Vege burgers etc...
Viennas
anything Vanilla