Mosses might do ok. Succulents generally require fairly bright light, as do Tillansias (air plants.) It really depends on how low the light level is. Some small ferns might be ok too.

This sounds really cool! Would you be interested in sharing a picture?

as for the lighting, theres two windows nearby where the table will be, but they dont get alot of light.. so i guess succulents and air plant are out of the question.. what about wheat grass? or what kind of moss? and where would i get the moss? heres a pic of the table before i stained it.. it also doesnt have legs yet. :)

http://tinypic.com/r/1puoi8/6