An iPhone 5 desktop cradle that works, for £1
This may be useful for UK readers. In Tesco today and they were selling Griffin speaker docks for £1, yes just £1. I bought a couple and thought I would try it with my iPhone 5 and it's a decent fit. The lightning cable slides through the bottom and it works well with just a small bit of manual fiddling to get it in. Considering there seems to be no decent iPhone 5 desktop docks available, this is a good solution for almost no cost.