I think squirrels believe most feeders are specifically made for them. But yes, Wild Birds Unlimited East Lansing, MI has a variety of squirrel feeders to choose from. There are a couple box styles that hold loose seed (Interactive Squirrel Feeder and Munch Box) and several that hold corn on the cob (Twirl-a-Squirrel, Squirrel Chair, Squirrel Bungee, and more).
If you are thinking about using a squirrel feeder to divert the little beasties away from your bird feeders, I get mixed feedback from customers on that tactic. Personally, I have one WBU hopper feeder in the middle of the yard for the squirrels and big birds to share and then Squirrel Proof, Hummingbird, Finch and Suet feeders in a different location. The squirrels go over to the bird feeding area occasionally, but tend to stick to their easy feeder.