This is why I suggested that we asked for artwork in the newsletter which was just published and set a deadline. That way, everyone would have known they only have a month left. One of the complaints from the last coin was that people weren't aware of what was going on until it was too late.
If you want the cutoff to be July 1st, perhaps this is one of those times a special notice should be sent out to all members?
We can do that if we all agree on July 1st. It was only a suggestion on my part.