How to decline a potato!
You could just say, "No, thanks!" HaHaHa!
But if you want the real story check out the Wiktionary:
Scoot past Faroese to Irish. See the heading "Declension". Click on "Show" and VOILA! The mysteries of "práta" stand revealed. A table showing the full declension!
And it's not just about potatoes. Many of the Irish nouns included in the Wiktionary have a full declension table. Those that don't usually give you a hint or two to get started with.
Do you know of other great resources?
Forvo, that's a great help with pronunciation. GRMMA! I started looking for a really long word to try to stump Forvo and came across this funny word building tree (and I would say they must all be "pending" in Forvo right now). :D
establishment -- bunaíocht
disestablishment -- díbhunaíocht
disestablishmentarian -- díbhunaíochtach
disestablishmentarianist -- díbhunaíochtachóir
disestablishmentariantstical -- díbhunaíochtachóireach
antidisestablishmentarianistical -- frithdíbhunaíochtachóireach