New Skårt: Penguin Footprints

Following on the theme of "Take your Sister to Work Week".  My sister tried her hand at designing and making a few t-shirts.  She came up with this adorable scene of two Penguins trudging through the snow.  So adorable, that I helped her turn it into Skårt.  You can find different colored versions of this print for $16.00 on Etsy.  

Now I'm trying to convince her to design a few more so we can turn this into a series and print it on wood.  What would you like to see? A series of 4 different penguin prints?  Or other animals, maybe polar bears? seals? or other arctic/antarctic creatures?