They are high quality (from Europe).
The only place that I've found them in the USA is in the PNW for over $1 ea., with a minimum $100 order, and selling to businesses ONLY (with business licenses - whereby buyers must submit copies of their licenses).
I'm only going to offer the size which is 10mm on the bottom (the part that fits into the water key cup) and which puffs out approx. 3mm larger on the exposed upper part. The fit is probably fine for either 3/8 inch or 13/32 inch i.d. water key cups.
I'll leave this post up for ONE DAY, because I need to get this stuff ordered.
I'm offering a minimum of ten for $20 ($2 ea.) plus $6 postage additional (for whatever quantity).
Further, I'll be asking for prepayment, and no returns...
...and yes, I'm attempting to corner the mushroom-shaped water key cork market, while making an obscene profit of filthy lucre.
![Smilie2 :smilie2:](./images/smilies/e21547.gif)
Otherwise, I'm NOT interested in buying a bwut-lode of them for "stock", and - later - selling them onezie-twozies.
I'm not in the mail-order parts/accessories bidnuss, other than some tuba mouthpieces.
![Image](https://assets.technologynetworks.com/production/dynamic/images/content/345123/a-mushroom-a-day-keeps-the-doctor-away-345123-640x360.jpg?cb=11092862)
![Image](https://video.fmem1-2.fna.fbcdn.net/v/t1.18169-9/19059035_1387054928051459_8915541572393416034_n.png?_nc_cat=110&ccb=1-7&_nc_sid=9267fe&_nc_ohc=rsUFeGMymmYAX8XktJR&_nc_oc=AQlLDwtx9ZwOl6oJRQcTbwSRtTy9z7IffUcaAd0PqI83vLD-fOCw4m2qSayitGwHRgQ1dM8z8rz202MntbiuO3kG&_nc_ht=video.fmem1-2.fna&oh=00_AfAhVNCbK2qB-RS8VvlgTU53gm0X7G7yo9s2PJKeesK1DA&oe=64BAA044)