Welcome to the Cake Decorators Q&A
cakestand used in making the coral reef cake tutorial
is the cakestand you used in the coral reef tutorial custom made or can it be purchased?
I'm not quite clear whether it is the turntable to which you are referring or the actual cakestand.
The turntable, I understand is no longer available but they do sometimes appear on eBay and are quickly snatched up. However, please take a peek at David's answer for name reference in the following link:
If it is the actual decorative display stand that you mean, these I think are sold at the Cake Decorating company.
Hope this helps. 🙂