My brother has a collection of beautiful glass pipes. It makes it very easy to know what to buy him for his birthday! There are some really good online stockists, many of which work closely with artist who produce completely unique, one of a kind pieces. As well as having a big range of pipes in many different colors and styles, some of the retailers also give you the option to order a custom designed piece. Of course, this service costs a little bit more but you end up a gift which will be really appreciated.