IMO, this is the best shaper on the market: http://www.trogdoncues.com/tip_shaper.htm
It's not unique in design, but is a great size/shape. And funtionally it is much better than other shapers of the same type.
I like my Porper Little Shaver for trimming. For shaping the tip I use a tool like the Trogden tool and it works great. When you buy the Pocket Lathe (I think it was called) you get nickle and dime shaped tools shaping tools.