I haven't done this since 2007!
I wanted to play a dwarf paladin. The fact that the rules forbade that combination only made it more tantalizing. When I learned that the original write-up for the paladin class in the Greyhawk Supplement made no specific reference to the "humans only" rule, I knew I wanted to play some OD&D real bad. Lacking a game at that time, I made up a slate of new PCs -- including my dwarf paladin (I cheated and rolled 3d8 for stats -- I was going to make sure I qualified for a paladin!). Then I went about solo gaming (which consists of rolling randomly for everything, to eliminate player knowledge from the equation). To keep an element of danger in the game, I decided that I would not fudge any character deaths. And so, at 4th level, my beloved and only ever dwarf paladin, bit it in mortal combat with a fire giant. Pretty unfair, I know; there was only a random chance of the PCs running away...
Character Name: Skalar Kallionkiel
Regional Origin: Blackmoor
Faith: Church of the Facts of Life
Experience Points: 12,000
XP Bonus: 10%
Strength: 18/73 (+3 to hit and damage)
Constitution: 15 (+1 hp/die)
Dexterity: 16 (+1 to hit, -2 to be hit)
Languages: Common, Lawful, Dwarf, Gnome, Hobbit, Elf, Kobold, Goblin
Hit Points: 32
Armor Class: 3 (-2)
Money: 12 sp, 1 ep, 273 gp, 1 37 gp gem, 1 100 gp gem
Items: Platemail armor, helmet, leather backpack, wineskin, silver cross, shortbow, quiver of 20 silver arrows, silver dagger
Magic Items: Sword +1