The Pleiades is an open star cluster, not a star: it consists of over a thousand stars. Since it is spread over quite a wide area of sky, it is best viewed with binoculars or a low power eyepiece in a telescope; 150x or 200x would show you only a few stars, not the whole cluster.
Actually the FunScope is an excellent telescope to view the Pleiades, but with its 20mm eyepiece (15x). 150x or 200x is far too much magnification to use with a small telescope like this. I own a FunScope and have had excellent views of the Pleiades and the Andromeda Galaxy with it.
At that high a magnification, you will only be able to see a tiny fraction of the Pleiades at a time. Binoculars would be better.
[EDIT: This statement applies to the original phrasing of the question, which listed 150 as its magnification, not 15.]