Yes, Carnival still offers the Fountain Fun Card. I'm pretty sure these prices are still accurate.
18 and under $4.00 per day plus 15%.
Adults $5.50 per day plus 15%.
is a link.
I am not familiar with a "Drink of the Day" card. This was posted in another thread a few days ago. Carnival representatives have never heard of this either. My guess is it was a chartered or large group cruise this was available on. Or, it is something so new that one knows anything about it yet.