Ever read the Bunnicula books? If you haven't, I highly recommend it (no matter how old you are). if you have, you can appreciate the whole white vegetables deal (or is pumpkin a fruit? Either way, it's white) These pumpkins could add a nice contrasting decor to the typical Halloween decorations you see.

White candles that are in the shape of pumpkins. A simple and easy decoration. (via potterybarn.com)

These life like pumpkin candles come in white too and will add a fresh look to holiday decor! Mix these in with the orange pumpkin candles for a festive holiday atmosphere.

This candle is a bit unusual and would make a great addition to a Fall themed candle arrangement. Nice. (via Crafted Candles)