This is a game my friends and I play when we're bored.
 
Rules:
*Standard Rules apply.
*No card restrictions at all.
*Players draw two cards each turn.
Materials:
*A large box(if you care about your commons.) OR
*A large bag(if you don't care about your commons.)
*A friend to play with, duh.
*Hundreds/Thousands of commons with the filler removed(No Chaos Greed, but can leave crap monsters such as Electric Snake or 3-Headed Geedo for example.)
Set-Up:
*Fill the box/bag with the commons.
*Shuffle/Randomize the box/bag.
*Both players reach in and take a handful of cards.
*Players, without looking at the cards individually, organize the cards with the back sides up, to resemble a deck.
*Both players proceed to duel with the random deck they have now.
It's a great game that takes advantage of:
1. Useless commons
2. Boredom after too much regular dueling
3. Player ingenuity!
I've pulled off weird combos in this game that I've never been able to try in a real duel. I pulled out a Chaos Necromancer with 10 monsters in my Graveyard-3000 Attack 1-Star monster! I've also used a Dreamsprite to send all the attacks to a Guardian Kay'Est in defense mode. With so many useless traps to use, I set them all down and used Gryphon's Feather Sweep! It's like a Limited/Draft Game, but is so much better.
For good measure throw in a couple of Monster Reborns, and Change of Hearts-No restrictions apply.
 
Have Fun!
 
E-mail comments to Berserker at  BerserkerAzn275@yahoo.com.