Shims for rear wing

[Ashlandchris]

Hope someone can assist please. Is there a proper name for the little plastic shims that go under the rear wing to stop it rattling?
My children have bmax 2 which uses body clips to hold wing in place, but all three just wobble. I have a set of 2 angled shims which I think came from a team c Jekyll, but can't seem to find the items to buy more. Does anyone know whether these are available as single items or as part of a parts tree (hopefully not) and ideally yoke bmax2 compatible.
At the moment I'm having to use foam stuck on the mounting points and it annoys me 😀