Mushrooms holders

[Leki]

I have been looking for a clay mushroom holder for my mom, but I can't seem to find it! It looks like a clay garlic keeper, but it's bigger. She broke her's last year and is still looking for one. Thought I'd post here and see if anyone knows where I can buy one. If anyone has any info on this I'd really appriciate it!
Thanks!
--Leki