I took a look at the felt puff and there was a tiny tag on it that read Scraperfect. I took a look at their website and it looks like they are still selling it. It's call a pouch--not a puff.
I think it's a bit pricey. But, I've used mine quite a bit for 3-4 years. So it lasts a long time. I would think if you can figure out what the powder filler is you could probably make a felt puff for a lot less.