There is achievements for both of these but for some reason it says I only have 6/10 when for both plushies and beanbags I have more...

Are there some plushies and beanbags that don't count or is this a temporary glitch?

Edit: Sorry I figured it out! If anyone does need to know just Smail me or send a comment I'd be happy to help.

I'm not sure, I just thought the same thing, I checked mine and it said I only had 12 when my collection screen said I had 16. I've since added more so maybe it takes a while for it to catch up?