Sending Packages w/out collecting personal info?

I recently started a group/network and want to send out “welcome” packages to the first x members who joined.

This is an online group, so I don’t want anyone to think that I’m trying to collect their personal data (ex. Shipping address) or anything like that.

Is there is Service I can use that does this? The “gifts” can actually be purchased from Cafepress or zazzle or a smiliar site, so I don’t have to physically have them with me. Is there a “Send a Gift” feature where I can buy the customized items and get some sort of passcode I can send them that they can use to get it???

Tnx