I'm already making Valentines for a sale at my church so these will be perfect - I started out with one and ended up with a waddle!
I looked up what groups of penguins are called and they can be a Colony, a Rookery, a Huddle or a Waddle - I like Waddle!
Also - if they are floating on a block of ice in the ocean they are called a Raft!
I put a white oval back on my penguins, scoring a line across the top to adhere to the top of the black penguin piece. I also cut off a little slice along the bottom of the white oval so the penguins wouldn't roll over!