If you have some old china, you can set a very pretty table. I found some pretty and inexpensive sets from Ebay and Home Goods. You can mix and match your place settings to make a shabby chic style table. It makes the table a little less formal, but just as pretty.
Our menu included three types of tea sandwiches: cucumber mint, strawberry, and nut; cream scones with Devonshire clotted cream, strawberry jam, and lemon curd; and two desserts: lemon curd tarts and white chocolate and chai tea mousse. These need to be timed right for everything to be served at the same time. The mousse has to be started the night before, and the lemon curd is best prepared in advance since it will need time to set (we learned this the hard way). To help get everything done at the right time, it's best to recruit your guests to join in the work.