There are severe restrictions in my dinner party. For a start my house is really quite small so there are a few characters who would probably look down on me for that.

I also cannot cook very well but I am afraid I would insist on preparing everything. A mediterranean salad I think. So you can see that it will be a fairly simple occasion, suited to certain tastes.
So who to invite?
Saeros - oh, wait....no, not him.
Merry Brandybuck - because the size of the house wouldn't bother him as much. Also because he's absolutely brilliant!
Luthien - because everyone would behave with her around. Also, I'd like to see with my own eyes....
Tom Bombadil - without question, the merriest guy going around. It is guaranteed to be a night of good cheer with him here.
Lalwende - because it seems as if she'd be a delight to talk to. Also, there
really needs to be at least one person there who I could make laugh.
The Saucepan Man - what needs to be said? I already picture him as Tom Bombadil-esque!
Diamond - because, quite frankly, she's hilarious.
*Note to add, it's cruel to pick out three. I'd love to have a big party with all of you guys.*