The modern aproach would be to use a online wish list tool instead. One that lets you describe your wishes and stores them safely and then show it to those you want to. And lets the buyers collaborate by reserving items and comment them. But not spoiling the surprise by showing their collaboration to you. You should be able to invite people the way you want. Via email, Twitter, Facebook a blog or other.
There are many web apps for this, varying in quality and functionality. Basic requirements should include the ability to create custom wishes, then invite friends and let them reserve and comment the wishes without the wisher seeing it. We are going to use http://www.wlistr.com for this guide.
Step 1: Sign in With Facebook or Other
Step 2: Name Your Wish List
Step 3: Ad Your Wishes One by One
Step 4: Change or Delete Wishes
Step 5: Press the Invite to Wish List Link and Manage the Invitations
The second technique is to enable the public direct link. When you check the public direct link box, a link appears bellow. Take that link and spread it how you want it, on Facebook, Twitter, on a blog or other. People following that link will see your wish list but they cant reserve or comment wishes until they have logged in (see first step). This prevents trolling (unknown typing nonsense and worse in comments).