I have some over-sized cards from the Avacyn Restored Helvault pre-release event. Trading for stadard, modern, edh, or zen lands.

2x Griselbrand - $5
2x Avacyn, Angel of Hope - $5
3x Sigarda, Host of Herons - $4
3x Gisela, Blade of Goldnight - $4
2x Bruna, Light of Alabaster - $3

I think it's unlikely people will want to trade for these at those prices given that they can purchased from SCG for $2.99 apiece.