Per request, here's the skinny on the cake art from this post.
We used regular cheap-o cake mix, butter flavored yellow. Made the batter per the instructions on the package (ate a shitload of the batter. Raw eggs be damned--some things are sacrosanct), then we poured a cup or so of batter into five separate bowls and added gel food coloring to get them jazzed.
Poured the colored batter into a bundt pan one at a time in messy layers to get the groovy psychedelic effect and baked per instructions.
I got the batter coloring idea from this recipe.
As for the frosting, we made this no-cook buttercream, which was a pretty damn good alternative to other terrifying buttercream frosting recipes that require (gasp) a candy thermometer. Our frosting was sweet, but it tasted wonderful on the cake. I added a couple of shakes of salt with the sugar, and recommend you do the same if you make this. We also made it a day before we used it to get it all married and shit (ask Al the Retired Army Guy about that, he should know).
The frosting wasn't quite creamy enough to pipe (probably operator error), and that's why we ended up globbing it on the cake like that.
This cake rocked my face off.
Because I am a perfect piece of ass as well as brilliant and grandly generous and because I know there are a whole lot of candy-asses out there who need all the help they can get, I'm going to give you my recipe for brown sugar icing so pay attention and don't be an asshole.
Put a cup of packed light brown sugar, 1/2 stick of butter (4 tablespoons), 2 tablespoons water and 1/2 teaspoon salt in a saucepan on low heat. Stir until its melted and just begins to bubble.
Take it off the stove and add 2 egg yolks. Whisk those mothers in righteous.
Put it back on the stove on very low heat and stir constantly until it thickens up, about 2 minutes. Let it cool.
When you spread a dollop of that brown sugar icing over a piece of regular yellow cake (bundt shaped is best for this), it will kick your ass all the way to Akron. I call the yellow cake with brown sugar frosting "Recession Cake" because you can make it for about three bucks but it's so good, you wouldn't hesitate to call it the best piece of cake you ever put in your miserable mewling mouth.
That's the Goat eating Recession Cake in the pic. Can you believe this guy? I cook all this shit for him all the time and then I go and deal with his filthy member in the bedroom and look at the mug on him. Jesus christ awmighty!
I don't know what all you people did to deserve a goddess like me. I just don't know what at all.