CheapTweet is a replacement engine for the sales, deals, coupons and discounts on Twitter. It uses Twitter conversations and user votes to determine the most talked about deals and filter out the best.
We tweet all product updates, but to make sure our tweets with items that are on sale, get picked up on CheapTweet, include words like "Sale", "Free Shipping", "Discount", "Deal" or percentage price reductions in the Product Title.
Please don't incorporate those words in Titles, if your products are not on sale. That's a spam.
Here is where you can vote up deals from iCraft
http://cheaptweet.com/twitterers/iCraft?page=1