When I go no carbs I carb up on pure sugar sometimes (on my cheat meals) or at least simple carbs, absolutely no difference what type of carbs anyone takes cause the body has been depleted, in fact simple carbs will enter the muscle faster so even better. Banana bread 
I carb up on Snickers bars (fats and sugars) the day before the show, along with cheddar cheese rice cakes (for simple carbs and boatloads of sodium). Lots of fats and sugars and sodium.
When you've dieted down like crazy with tons of cardio, your intramuscular fat stores and glycogen stores are both depleted. That's why garbage high fat/high carb foods can reallly fill you out - they attack both problems. Intramuscular fat gets preferential re-feed treatment in the body over interstitial fat, to a point.
Also, I agree with what OTH said. When I've run down my water and have the diazide in me, I can get away with eating just about anything, as long as I keep the water down. As soon as the water comes into the body after the show, I have about 2 hours where I looks my best ever, and then I start spilling over very, very fast. It's too hard to time it for a contest, so I've never tried. Just come in dry and try to stay full of fats, sugars and sodium.
My plan is this for a Saturday show:
Thursday night is last night of training. Before bed, a 16oz steak, 2 cups of rice, plenty of hot sauce and salt for sodium. Take my last big drink of water. The three days leading up to Thursday, I've been drinking water like a mad man (upwards of 12L/day)
Friday morning, wake up. Eat a Snickers bar, 6 rice cakes, and a diazide. Repeat the Snickers and rice cakes every 1.5 hours as long as I'm awake. Take a diazide every two hours. This is repeated until I fall asleep Friday night.
Saturday morning, continue the exact same regimen as Friday (with the Snickers, rice cakes, and diazide). Except now when I pee, I measure the pee, and drink that much water to try to keep some water in the body so I don't cramp up, pass out, die, or flatten out. After prejudging, I generally try to cram a couple of McDonalds hamburgers in me, because I know I'm going to sleep. When I wake up, go to the night show and try to hold the morning's condition. Sometimes the body cooperates, sometimes it doesn't.
After the night show, I come home, have a couple of hamburgers and drink a bunch of water, and go to sleep again. Invariably, when I wake up, I look like a freak. Then by 10 am, I start bloating up. 2 days later, I'm usually up about 25-30lbs of water. It goes away after a week or so.