Where to find a 24" cube tank

[miketheclown]

I hope someone can help. I'm interested in setting up a 24x24x24 tank but I don't think I've even seen one for sale. I looked into having one custom-made but it was a little pricier than I thought it would be for that size of tank. If anyone knows who makes these or where I can find them, even custom built, I'd appreciate it.

Thanks.