This may violate the specified non-anorakiness.

[GIII] Oshibana? NO
[Rosie] Ticket collecting? NO. On reflection, I think the activity is a bit anoraky, but I don't think it's required.
[Irouléguy] written or printed? Printed
[Quendalon] Mass-produced? YES

This is strongly implied by previous answers, but I wanted to confirm. Also, interestingly (or perhaps not), when I first asked about recreation, I almost said hobby.

[CdM] Is the collected item entirely vegetable? There may be small traces of mineral, namely printing ink and ingredients in paper, but otherwise YES. (Hobby would have been a much easier question to answer).
[Raak] Made of cardboard? NO
[Quendalon] Sport cards? NO
[Chalky] Top Trumps? NO

[Everyone] As I mentioned earlier. the items accumulated are normally primarily made of paper. The items collected to provide that accumulation are not, but are still almost entirely vegetable. If that doesn't confuse the matter, I don't know what will ;-)

Scratch that, we've already established that it doesn't begin with a "P".

[Quendalon] Phillumeny? NO. Nor is it matchbook/matchbox collecting, for that matter.

... and if the answer is 'YES' ...

[INJ] Labels? NO

You know. Them things.

[Rosie] Big enough to cover a beermat? NO - at least not in my experience or knowledge

Kind of a shot in the dark. But if it's a game-winner, that'd be pretty sweet.

I can't help thinking about your reply to my question "Is this a form of entertainment" and you said NO and the audience actually chuckled.

[Chalky] A disrespected hobby? NO - The couple of people who chuckled were (like me) amused by the thought of someone exhibiting their collection for entertainment purposes. Probably not very helpful chuckles, but chuckles nonetheless.
[Quendalon] Sucrology? YES - Congratulations, it is the collecting of sugar sachets and sugar cube wrappings. The sweet smell of success is yours. The difference between the collected items (mostly not paper) and the accumulated items (mostly paper) is that sucrologists remove the sugar post-collection and pre-accumulation. The UK Sucrologists Club has around 320 members, publishes a quarterly newsletter called "Sweet Thoughts", and offers a link to (amongst others) the Berlin Museum of Sugar.

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(Phil) A bit anorakky?? Positively pathetic, certifiable etc etc. I dunno.

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Well, that was interesting! Let's move on to the next item:
Animal and/or Vegetable, with Abstract connections

[Tuj] Starts with P? NO. *amused laughter from the audience*

[Irouléguy] Edible/potable? NO.

Well, give me a break, I don't know what they are called. They usually have a (strong) scent and might have disinfectant properties.

[Dujon] "Urinal blocks" is the disappointingly mundane term you're after.

(Phil) May be disappointingly mundane but intriguingly ambivalent, given the undesirablilty of a blocked urinal.

[Chalky] Bigger than a toaster? Bigger? How do you mean? Area? Thickness? Width? Height? Bulk? Mass? More famous? ;-)
[Dujon] Urinal cake? NO.
[Phil] A human(s)? NO.
[Rosie] Life? NO.