Introducing my LEGO Parts Guide, which is powered by images exported from LDraw.

[Gerald Lasser]

In an ideal world, websites like BrickLink or Rebrickable (which show which colors a given part comes in) would have a database of known non-production q-element colors.  That said, I don't think this would be very useful, nor easy to maintain, since we would be trying to maintain a database of what basically amounts to stolen LEGO parts.

P.S. I have heard two slightly different definitions of q-parts...  anyone know which is correct?

1. Any part in a non-production color available to LEGOLAND model builders is a q-part or q-element.
   
2. Q-parts/elements are those parts which are produced in a full range of colors for LEGOLAND - so a Q-Part is a specific part shape that the company has decided is useful enough to provide to model shops in all colors.   (If this is the right definition, I would LOVE to see a list of which part shapes are defined as Q-Parts, because it is a signal that TLG sees the part as crucial to general-purpose model building.)
   

---Tom

I agree with you, IMHO maintaining a List of Q-Parts, especially if it only concerns colors, does not make sense. Colors come and go and some Q-Parts may end up in the "main-line"

e.g. this one is listed as Q-Part, but it was in sets up to 2010, but not now.
6078096 2877 PROFILE BRICK 1X2 (Q)


I have never seen a LEGOLAND specific design.

That said I do have a list from 2019 of what LLs could order and you can filter it by "Q-Part", and those are only colours that can be ordered by the LL Builders, out of a total 11000 parts 898 are Q-parts.

And they all have an Element-ID, which is basically their order number.