My favorite deck I own is my Jasmine Boreal of the Seven all old border deck. Lots of vanilla creatures and an enchantress subtheme for card draw. Its fun to work within the limits of old border only, and its a great excuse to look at tons of old cards.
It's not together anymore, but I used to have an [[Oloro, Ageless Ascetic]] sitting in chairs deck. At the time I tried to mostly only use cards that had someone sitting in a chair, but cheated a little as long as a chair was somewhere in the art. I'm sure a lot more cards exist now, along with alt arts that you could probably fill a whole deck of seated people. That included instant, sorcery, and enchantments too. I let artifacts slide because a deck basically needs mana rocks to function.