Here's quite a simple 'parallel' design that won some points
http://www.gardencentral.org/ncafgc/...esignsfontnob/
'White' probably gives you a larger range of shape/texture/size etc than any other colour, so you really are spoilt for choice.
Go on then..lets see you do something very wild and wonderful...think of something that no one else would dare to do,.. then post a pic on here for all of us!
I'll even try and talk admin into giving you some free money for you efforts.