Yes I second CP's cream puffs. You can make mini ones by piping on to a tray. Can be made, but not filled, the day before.
I also like to offer a savory plate. Cheese scones or savory muffins are good. If the morning tea is likely to replace lunch, I make small round bread rolls, scoop out the soft centers and fill them with either curry mince or salmon mornay.
Have fun, and let us know how you go, Deeau.