A group of users who took the BM Boon last time did compile a list, but I stupidly deleted it. *headdesk*
People think the boon is glitched, but most still don't understand how it works. You are right Siniri on how the boon works.
Basically only a set amount of items are used for the boons. These items don't change (which means as time goes by and more are bought, the value will drop). So it is not every R85+ items that stock but a selection that TNT have already picked out and set up to be used with the boon.
It is correct that the boon is always activated, that is why it is essential that if you can activate the boon at midnight NST, you can go straight to the shops and pick up all the BM goods that have stockpiled during the week/s.
It is very restrictive and annoying. Mystical Surroundings seems to be the easiest shop to grab a highlighted item (for me anyway).
There should be chocolate items, but must be so rare that they never show up more than once a week. I have such bad luck with the Chocolate Shop anyway, I have never seen Chocolate Avatar item in the shop (not even to say I saw it, but missed it!). I have more than enough time on my hands at the moment, I have spent 5 hours + every day since the boon refreshing.
I am keeping a list of items so hopefully that will be a small start to helping us with the boon. ( A full break down of what I paid/sold for when it is finished. I also know the Collectable Shells and Stamps have some items.
So far I have bought:
Broken Stained Glass Window Background
Dreamy Pink Hearts Background x3
Exploring Kreludor Background
Idyllic Nature Scene x2
Outside Desert Arms Background x2