Last year I saw a couple of great examples of hand stamped business cards and promotional material. They work really well for small shops and businesses, as long as you have the time to make them up. A couple of weeks ago I ordered custom stamps from Vistaprint (not a great company... so many frustrating hidden costs - an uploading fee!). My little rocket logo, and a name tag/website link.
I'm really happy with the result - they look cute, quality and professional as well as being a bargain! I feel like I'm on the way to creating a stronger brand image. I'm using these stamps for business cards, all my packaging, including cufflink boxes, and on other promotional material such as postcards and discount coupons.