These cupcakes with adorable animal toppers are by xqueenofcupcakesx on Flickr, aka Erin R, who sells cupcakes in Carnegie, Pennsylvania. Click here for her menu listing and click here for a full cupcake Flickr set.
And here are a few other fun cupcakes from her Flickr set:
Yo Gabba Gabba cupcakes
Gingerbread and other Christmas cupcakes
Bridal shower pumpkin and leaf cupcakes
Red velvet cupcakes with cream cheese frosting, made to benefit her local animal shelter, Animal Friends.