I need ideas! 400 cakes to be made! Help?

-My stepdaughter is getting married in a self- catering venue and I have to provide little cakes / treats. I need about 400 individual items that don't require plates or cutlery to eat. On top of this, they must be transportable, stackable and not need to be refrigerated. I am trying to make ahead of time and freeze them but they will have to come out of the freezer and be put in decorative boxes about 30 hours before being eaten. So far I have made chocolate fairy cakes (to be decorated the day before the wedding) , shortbread and bakewell tarts. I am worried about stuff being stale. Any ideas?you could do some macaroons that are easy to transport, although a bit of a faff to make. How about things like mini biscotti or mini muffins, decorated sugar cookies, mini tarts, mini iced buns....



hope some of that helpsOooh, do the following;



oatmeal mixed with melted butter and sugar until it becomes a paste. Add some cinnamon or cardamom and spoon drip onto non stick oven tray. In oven until golden, cool and eat. Can be stacked but I suggest with some non stick sheets in between.

Or add orange/lime/lemon peel and vanilla.

Alternatively- take away the sugar and add parmesan. Same method.

None needs to be refrigerated.
oh! you can order it to the various and in a different bakery shop according to your favor or desirable cakes.
Make petit fours.
what about different flavoured twinkies? lol u could decorate them too!
Cookies

Red Velvet Cupcake

Oreo Cookie Cupcake

Cakes in different shapes