Posting as a way of gathering interest. A friend and myself had come up with a design for a 3D printed dust cover for the standard shape of the BIM, BAM and BOUM.
If there is interest by people, we will make a run each colour to correspond with the colours associated with the effect unit in question, blue, yellow and red. If you have a colour in mind this could be possible but with an additional cost.
A cost has not been decided yet but would be aiming for as little as possible as we are in Australia and postage worldwide will be available.