I will be bringing my Smartkey programming equipment to TGB4. If you need an extra Fob made I'll be able to do it onsite with "special event prices" for attendees. All you need to bring is your Prius and ALL existing keys/fobs you have. I will be able to program customer supplied Fobs (new or used) and will have a few nice used Gen 2-3 Fobs with me if you need to purchase one. If you only have one key/fob for your car I highly suggest you have a backup made. If you lose your last key it gets very expensive to make your car drive again, especially if you have to tow the car to the dealer. I've heard of people paying $600-$1200 to the dealer after losing their last Fob. -Paul