I found this over at Betty Bee and thought it might be worth posting and linking to because good quality, affordable cake stands can be a challenge to source sometimes.
Although I haven't tried this myself yet it looks reasonably straightforward and if you can find plates cheaply at a car boot sale or charity/vintage shop you should be able to do for under £10.
Head over to Betty Bee for the full how-to guide and if you do make one let me know how it goes. As in, is it as easy as it looks?!