I did it a couple weeks ago. At that time, we were only planning on bringing my youngest son since we didn't want to pull the others out of school (DH is going down unexpectedly for work) so I ordered the personalized buttons for him, me & DH. DH loved his (which I put his company name on, plus his location, along with his name).
We then decided to bring our older 2 kids and DH wanted to order buttons for some of the guys he works with. I also couldn't find them on the site and called the number and they told me it had been discontinued. These literally were like a week apart.
I do know if you read the fine print on the regular (non-personalized) buttons, it explains that they are printed as a fundraiser by a school for kids with special needs, and there might be some printing "irregularities". Maybe too many people complained, maybe the kids made enough money, maybe (this is what I was hoping) they're just off for the holidays! But it still doesn't show them, so maybe not!
Even when I explained that we just wanted to get a couple, she told me it wasn't possible. I'll let you know if I see/hear anything different!
