They are fun for the whole family and they are free. They're giving them away in magazines and on TV. You can also pick them up from your neighbourhood church. If you want to pay a premium you can get the deluxe ones from the Ministry of Vital Statistics and your friendly, neighbourhood family law practitioner. They can also be picked up at your favourite bars and nightclubs and as a bonus you can also upgrade the ones you have while you are there. They are also fun to share. Hide a few under an old lover's pillow - they'll find them when they least expect them. Hours of fun.