There are only few desserts I really enjoy, ice-cream cakes are one of them. If you get them from an ice-cream place like cold stone or baskin robbin, they are good but very expensive; and the ones from grocery store aren't very good.
Since my daughter (who turned 3 today) didn't tell me what cake she wanted, I decided to make an ice-cream cake. There are few things I will do differently next time but it was very easy and tasty, not to mention the price was GREAT! I think it totally costed me about 2-3 dollar, well....... it wouldn't be that cheap if I didn't get the ice-cream for free.
If you consider making an ice-cream cake, you should watch some youtube clips about it, get the basic idea then be creative and make it your own. It really not that hard! Enjoy!