Can you add some puzzles or trivia questions to your site?
Simple but effective as a contact details database builder
Do you want to start recruiting the interest of children as your future customers? Have some puzzles designed for your website that are printable and can be coloured in.
Make the puzzle themed to your business. You may be quite surprised to find out that there are many adults that still enjoy colouring in as well, so a sophisticated and highly detailed drawing may be in order.
For example if you sell auto products then a drawing of a formula 1 car or something driven by Peter Brock or Mark Skaiffe is in order. Make sure it has your business name somewhere.
Perhaps you can design a questionnaire to print out for kids to play when they are travelling in the car. Things that you would see on a trip. It keeps them quiet. Children are so tech savvy today that they could probably do it online from your website.
Or go more sophisticated and install an online game on your website for those older tech savvy children (and some adults).
Collect the contact details before any of these are played online, downloaded or printed out.