That doesn't jive with Zynga's documentation. What I suspect may have happened is that your week starts on Thursday.Weekly? The stable has been out 2 days? The two stable items in my gift-able list has already changed, a few times.
So far, I've checked with 8 friends and 7 of them still have the same two items on their Gifts page and the eight friend doesn't remember.
I'm already done with nails and boards. I wonder if I should keep the extras (just in case?) or just sell them back for 5 coins.