Hey neat blue dog
I think it's more along of the lines of when publishers ask how much they are etc
the answer is that the cost is covered by their donations to the worldwide work (rather than a donation to local congregation)
I would have thought even a brief congregation announcement could be in order, if it was felt to be needed.
this would be in contrast to the costs for the printed posters for which publishers may contribute to the local congregation (and not the worldwide work)
And in real life, I think more people ask about who pays for the actual printed posters rather than the cart....
That's all folks!
DarK SpilveR