You've got plenty of suggestions, but I still want to share mine
I used to sell PC and I LOVE to cook! I had a great time as a consultant (years ago) and had every product that they sold.
I love the mini spatulas. I probably have 4 of them, and when I have a party of any kind, they all 4 get used. I also try to pick up a couple of extra whenever I go to a show because they are great gifts for people. For instance, if I'm invited somewhere I will make a plate of treats and attach the new spatula to the top. Same goes for teacher gifts, etc... they are just a really nice size and hold up very, very well.
As others have mentioned, I like the garlic press, the mini-whipper (I really love that little thing!), the crinkle cutter, the corer (who doesn't love to impress by serving cucumber slices with a carrot slice lodged in the center? People STILL rave about those!)the mini baker (the other stones are too heavy for my taste), the pizza cutter, the dill seasoning (a staple in my kitchen!) etc..
Within the last few years, I bought a product that is called the "Chop and Stir" (I think

). You use it to chop up ground meat in the pan while cooking it (it's nylon so it won't scratch your pans). I didn't know if this thing would be worth it, but it's GREAT! It does exactly what it's supposed to do. Can't beat that with a stick!!
The other thing that I bought last year is a serving item. It's an oval wooden tray with 4 small wooden bowls on it. You can use them all together or separately. It's so pretty! It always looks great on my table and I've found so many uses for it.
I think you'll have fun at the party. Oh... one thing I bought that I didn't like.. cake decorating "tubes" that you fill up and then squeeze out the frosting. They are AWFUL to clean! I would not purchase them again.