I've seen those at Home Goods.
Amazon.com has that stand for $34.00. It is called white Porcelain pedestal stand/plate.
If you put "cake stand ribbon" in a Google search, you will see many options.
I got mine at TJMax.
I got mine from TK Maxx
If you can't find one in a store in your area, I have seen them on ebay.
I also got mine from TXMax. I think it was less than $20