Edited on 11/16/10: Thanks to Goalie Guild I found out that Dubnyk has two masks this season. His main mask has a pond hockey scene. Here's the video where he talked about his mask.
The backplate has a big giraffe in goalie gear along with a child in pink sitting in the snow, Dubnyk’s niece, and a breast cancer awareness ribbon for his mom.
Thanks to visitor, Kevin, I found out this design is very similar to that of Bill Ranford, goalie for the Oilers during the late 80s and early-mid 90s (2 Stanley Cup years in there.) I'll include a photo of Ranford at the bottom of the post for comparison. I guess this might be meant as a tribute to Ranford then. Thanks, Kevin!