The BootsnAll Family Travel blogger has a fabulous post, My Top 10 Ideas for Travel Souvenirs. It includes some cool and clever ideas, like visiting the local hardware store for signs that would normally be mundane, but are pretty cool in a foreign language.
Looking for ideas to pack light so you actually have room for souvenirs? See my article on family road trip packing. Get some budget tips on saving gas on road trips and how to afford your dream damily vacation.