sydcode

This plugin allows for custom editing of product prices in WooCommerce. This version only supports simple and external/affiliate products, but support for variable products will be added to a future version.
This is not an official WooCommerce plugin. Please do not bother the nice WooThemes people with support questions. All questions and suggestions should be posted in the plugin forum.
Thanks to Anthony for sponsoring this plugin.

WooCommerce Prices

This plugin allows for custom editing of product prices in WooCommerce.

olivecart

WP-OliveCart4 is a free e-commerce plugin made in Japan. 
With WP-OliveCart4, you can easily to e-commerce shop on WordPress.
WP-OliveCart4はWordPressにショッピングカート機能を追加する日本語対応、日本製プラグインです。 
今あるサイトをシンプル＆簡単にショッピングサイトに。

WooCommerce Prices vs WP-OliveCart