My personal favorite Blue Velvet poster - a stunning, beautiful image of Rossilini peeking behind her apartment door. (Only available on the French and the Belgium posters.) Due to it's size and beauty, it is quite valuable.

This copy was signed by Isabella Rosselinni during a Canadian tour promoting her cosmetic line. The signature is difficult to see on the large image - it is in the lower right hand corner near "DAVID LYNCH". Here's a closeup: