This should be an easy task for anyone who has expierence with Magento commerce. We had an online shop built using the Magento system, it already had the discount coupon feature included, but we thought we didn't need it, so the guy making the site removed this from the website.
I'm not sure if he just removed it from the design or from the entire shopping cart system; you'll have to figure that out :)
This project requires you to add the discount coupon feature back into our online store, and of course make it fit with the current design. It is an online fashion store, you can preview it at vanillastar(dot)fi
This project is a cheap one, but if you do a good job I'll give you good feedback plus I have a few other things I need done.
Happy bidding, if you have any questions please ask. Do not bid if you are not certain that you can do this, and do not bid if you think you might screw the whole shop up :)
Good luck, looking forward to hearing from you, thanks in advance.