Hi All,
Just catching up, been away with work....

Ok, spanner in the works 

Adding the flippers was great, but the URL under them should traditionally retain the "www" for clarity, and the URL should really be a solid WHITE text as the red/white border amongst the black shirt isn't contrasting enough.
I can see why you enlarged the text and dropped the "www" to compensate, BUT, the fact that it's now shrunk to a breast-logo, i'm still going for a solid white URL.

The heading "Aussie Pinball" can remain red/white border, as it's larger font and spaced for readability.

Those final designs (on BLACK shirt) are a simple 2 colour print, should be cheap-as....
The black shirts will be more expensive than the white, because it'll require a white base layer first, then red ontop.

If i had my printing gear handy i'd happily print these myself, but that's another story, maybe next time around....

just my 3cents 
MM.