Battlemap for miniaturized players

In a d&d campaign i'm prepping, a child gets hold of a magic wand and miniaturizes the players. In an attempt to get help, he puts the players on a table. (in my mind, a table of a family that just finished diner). Players must survive on that table for about 10 minutes, in which a battle ensues. I was thinking a rat and a few ants :-)

Feel like making a map for that? I've tried, but I'm sure you have some great ideas to improve ;-)