The Wicker Man DECPR1 also comes in a black and white proof version limited to 9.

To clarify, if you placed an order with Unstoppable in December, they sent you these 4 promos:

Highlander DEC1
New Avengers DECPR1
Avengers SPPR1
Hammer Horror HRWEB1

If you order Hammer and Avengers Platinum Series 7 boxes, coming March 12, directly from the Unstoppable website, you apparently get 2 new promos (limited to 99), 1 for Avengers and 1 for Hammer Horror. Images can be found in the email newsletter.

Have seen Hammer Horror MARPR1 to 3 and New Avengers MARPR1 to 3

The ones Tommy mentioned above on March 4th seem to be Avengers MHPR1 and Hammer DJWEB1. Each limited to 75. The number on the back of the Hammer is tough to read so I hope I am correct with the latter. Even holding mine under a magnifying glass I wasn't 100 % sure.