any one can tell me how to make tropical flowers

I have used the hibiscus silicon mold with both gumpaste and fondant...quick and easy....made a lei out of the various colored hibiscus...and added luster dust and a fondant bow to finish them.

What kind of flowers? Do you work in gumpaste, b'cream or ??
Here is a sheet cake that was posted today with what I consider tropical b'cream flowers probably piped right on the cake. HTH http://www.cakecentral.com/cake-photo_820453.html

If you do your flowers in gumpaste, orchids are very tropical and they are beautiful. You can also do hibiscus.