In our league, we had a few owners who wanted to play Halflings and Goblins (despite the warning from some of us). Well we just finished the season and they combined for a 1 - 24 - 1 record. Don't be fooled by the 1 win and 1 tie, those were verses each other, they were 0 - 24 against the rest of the league. These owners figured that they'd have a uphill battle, yet they hadn't expected it to be so bad. Don't get me wrong, these guys were good sports about it, but they wished they could be a tad more competitive.
Now we are starting a second season, and we wanted to see if there were any house rules we could add that would help out the stunties. After discussing it at great length, and searching the net for ideas, we settled on the following:
Note: Many of these are derivatives of rules found at: http://home.worldonline.dk/nyskes/bbowl/Bloodbowl.htm:
1) Stunty on longer adds a +1 to the injury rolls. The armor values of Halflings/Goblins are low enough as it is. Adding the +1 is overkill.
2) Team changes (see below)
Goblin Team
0-16 Goblins 40K 6 2 3 7 Dodge, Stunty, Right Stuff AG
0-2 Goblin Catchers 60K 7 2 3 6 Dodge, Stunty, Right Stuff, Catch AG
0-2 Goblin Hooligans 60K 5 3 2 8 Dodge, Stunty, Dirty Player AG
Added a few goblin catchers and a couple of beefy Goblins w/ Dirty Player (This goes with the classic idea of goblin cheating).
Halfling Team
0-16 Halflings 30K 5 2 3 6 Dodge, Stunty, Right Stuff AG, PS
0-4 Halfling Fatfellows 60K 5 3 3 7 Dodge, Stand Firm AG, PS
Added some beefy halflings, All Halflings can access pas skills. I like the idea that they are predisposed to throwing lots of short passes. (kind of like "hot potato' Mmmm ... potato).
Of course, Halfling and Goblins will still be able to recruit up to 2 big guys, per the standard rules.
Do you think that this will do the trick? What we are looking for is to improve them to the point where winning games should not be an amazing event which happens every blue moon. On the other hand, we certainly don't want them to become powerhouses! They are stunty after all...

- DamnDirtyApe