
Higginz |

I'm getting ready to start an online Kingmaker campaign, and I want to reward one of my players for having greatly assisted in the preparations for the game by creating the character sheets for several of the other players. What would be a nice item to bestow upon a level 1 cavalier in Kingmaker that would be nice enough to be significant, but not OP?

Adoke |
Although a little bit different, when I GM I commonly award XP to players doing things like getting me a pop while they're up or helping clean up afterwards. Mind you it's 5xp but they're addament that one day it'll add up and prove useful. =)
Point being though is that it's up for grabs for anybody, so if you're gonna give him a reward for the help he's given you, make sure you keep the door open for your other players to garner the same type of favor in the future.
Just spitballing, but maybe one might help create/manage a website for the campaign, draw pictures of PCs and/or NPCs, or some other thing to help make your campaign or job as the DM better/easier. Maybe even drop hints or flat out say that it's an option, that way they can't complain over-much about favortism.
Ack, one more thing, the consumable or fluff type reward certainly would be the best bet, and personally I would lean towards the fluff over any "tangible" reward mostly cause if I was the player I'd want a nearly useless Raven following me around all pestery ala Commander Mormont from Game of Thrones. =)

gnomersy |
Handy Haversack or an intelligent item weapon that can "consume" bonuses from similar weapons if given 1 day of constant contact so a talking sword that gets as good as any identical weapon type you drop not really a game changer just a fun roleplaying gimmick. The haversack is just downright useful all the time but won't break game balance.

BlueAria |

An RP bonus would be good, the party stays free at his home town inn because he saved the owners kid, he has earned some reward from his church and all spells cast by church clerics are 10% off any spell with out costly components, something that makes the character special and the party like him that much more but helps the whole group in a small way.
Just my 2 cents.

HaraldKlak |

Give his character 5-10 bottles of expensive wine (around 100 gp if a gp-value is needed). While he might sell them (not possible at character-creation), the money will only matter in the very short run.
Otherwise they can be used as a treat to the party, or in entertaining important guest. You can always make up some circumstantial bonus in either case.