Ok, give them some sort of rock throwing ability or a racial bonus to thrown weapons?
Added to Homebrews.
How about a racial bonus to thrown weapons, like halflings? We need to make them at least a tiny bit interesting.
If we're giving them a +2 racial bonus to Strength they should be Str 13 with a standard array, Str 15 with a non-elite array (assuming the 13 is in Str).
Since we didn't use class levels, we don't need an array. We simply pick the desired ability scores.