Owl Cake - finally a good tutorial! Except I'll use a whipped frosting instead of fondant. I think that'll make a cool effect for the feathers and besides, whipped frosting is AWESOME for smash cakes :D
Find Out How to Create Sculptural Cake Balloons from The Fashion Chef
Birds nests using Royal Icing, perfect for easter can make any color and fill with candy, mouse decorated eggs just remember to make small flat disk on wax paper and freeze then attach to the tops (bottoms when dry and flipped over) .
ZEBRA cake instructions: just color half of white cake batter. Drop tbsp of first color into center of cake pan, then do the same with the other color, making concentric circles. Keep layering the colors on top of each other. The batter will spread out