I find that carrying around a Casascius physical bitcoin comes in handy as a way to introduce someone to bitcoin. Though many people (particularly in the tech industry) know of bitcoin, few have seen a physical bitcoin. To help explain it, I also keep a "broken" Casascius coin as well. The mystery of how bitcoin can be a physical coin is explained simply by saying how the code printed on the outside is for receiving coins, and the code underneath the hologram is simply like a password. The value of the coin remains protected until the hologram has been tampered with.
- http://www.casascius.com
- http://memorydealers.com/catalogsearch/result/?q=bitcoin
There are a limited number of e-commerce sites thus far. As far as buy-now, possibly the one with the widest selection is:
- http://www.BitcoinDeals.com
And a more comprehensive list of sites and services accepting bitcoin as payment:
- https://en.bitcoin.it/wiki/Trade
An existing e-commerce site can add bitcoin as a payment method with a shopping cart interface (e.g., weex just updated the Bitcoin module for OSCommerce) or there are payment processing systems such as Bit-Pay which enable that.
- https://en.bitcoin.it/wiki/OsCommerce_Bitcoin_Payment_Module
- https://bit-pay.com
Are you are looking to create a site or service where bitcoins accepted and are looking for ideas, or do you have a specific idea you are considering implementing?