I need some block ideas

I'm making a mod for map building, but i really need some ideas for blocks for it. I mostly need blocks for building houses, in like a ghosttown for PvP kind of purposes.

I would like some suggestions for that 'cause i ran out of ideas aready... (no vanilla recolors)

Of course will the one who came up with an idea be given credits for it, within the mod.

i like to include a big variety of blocks