Seems DPA has discontinued the hard the rubber boundary mount disk for their 406x miniature omnis in white (BLM6000-W). They are still available in black (BLM6000-B), which I'm sure is far more popular. They were still making them in white last year and still have them listed as available many places, but I'm having a hard time finding any for sale here in the US.
If anyone has some of these in white they would like to let go (doubtful) or has a lead on any vendors who may have some still in stock, please let me know. I'm looking for 4 or 5 of them, but will take whatever I can get. Thanks.