They make a big "tweety bird" kind...it's really just a pez dispenser

but you'd have to teach the cats how to pull the head back
and eat out of tweety birds mouth

here is link to it..

http://lazyassresponsibilityshuckingsucker.com

Personally, I'd be worried about the failure of such a device if I
wasn't there to look after it.

I'd have more confidence in a gravity feed system.

http://www.petsafestore.com/erpetfe.html

Haven't ever used these, though.

Corey

John let me ask a couple questions

One how many cats are you planning to feed with this device?
Two are any of the cats over weight or have problems with free eating?
Three if you have mulitple cats are any of the food dominant such as pushing
your other cats away?

depending on your answers

i use several of these around the house  where each of my furballs have
establish there areas  easy to use a little expensive
http://tinyurl.com/afuhf

I use these when I know I won't be home all day.  I like these no worries
about a plug catching fire it works off a AA battery

these are set up through out the house both a water feeder and a free feeder
none of my cats have a problem with free feeding or are over weight
http://tinyurl.com/bvnbb

if you have a dominant food cat there are at certain petstores a radio
feeder that open when the cat wearing the certain collars comes near it
closes when it walks away.