NPR had an interview with the small businessman who produces most of the small wooden kids' arrows.  Apparently there used to be a low percentage tax on all arrows, but when there was a recalibration of sizes of larger, more expensive sports arrows.  Then the tax was changed to a flat fee - 39 cents, I believe.  While (I suspect) this was a boon to the manufacturers of expensive arrows, it was a killing blow to those making small, cheap ones.  Not a big group but they were diligent and got to a number of Congressmen, none of whom objected to putting the old percentage tax on small kids arrows.  I gather the $ figure included in the bail-out bill for this item is the amount of income that will be lost by applying the lower, percentage tax to these items.

And I heard on CNN that the "rum" situation was a re-authorization of an existing provision that allows some of the taxes collected on PR and VI rum remain with the local governments.  Again, the $ amount was an estimate of income that would otherwise have come to the Fed. govt.

Just found these interesting, as I'd been curious about what the "pork" in the bail-out provision was all about.  I guess the theory is that these are matters of particular interest to specific Congressmen (in this case House Republicans) that would be passed anyway if voted on on their own, but are included in another bill to grab their votes.  So perhaps there isn't a huge different between "pork" (items included in other, unrelated bills) and "non-pork" projects (items voted on separately -- which McCain regularly seeks for his state).