Birthday Party!

Pedro and TJ's birthday are coming up! Pedro's is on the 6th and TJ's is on the 19th. I thought it would be easy to have a double-party. For the dogs I was thinking about these cookies that I saw at Target (they look like a new dog gift pack, it includes treats dipped in cheese and that dog chocolate).  I'm also going to get some of that dog ice cream and maybe make a cake. Would a regular white cake hurt their tummies, even if they only had a tiny piece? 
I'll have food for the human guest -- things such as bone shaped cookies, but I'm not sure what else. They have a bone shaped cake pan at Target but it's $19 and I think that's a little expensive. I was hoping somewhere they had like a party pack or something but any ideas or suggestions on things to make, what to do, ect would be great! I'm also considering buying Hormel chicken for the dogs as like their "dinner" and I saw it today and it looked okay but I was hoping someone could tell me if it would be okay to serve. It's 100% natural, no preservatives and it's gluten free. I was planning on just putting it in the oven to heat it up since it's already cooked.

* [linkhttp://www.hormelnatural.com/products_chicken.html]http://www.hormelnatural.com/products_chicken.html[/link] [the Hormel chicken]

* [linkhttp://www.petco.com/Shop/Product.aspx?familyid=9968]http://www.petco.com/Shop/Product.aspx?familyid=9968[/link][dog ice cream]