How do you show your kids where they have travelled?
Growing up in the US, my parents bought sew-on patches from where we had travelled (normally the state patch, perhaps a specific national park). They started putting them on our backpacks, eventually putting them onto a hooded sweatshirt when the backpack was full. Now I have a family of my own and find myself doing similar, only with country flags as we live in Europe(some US city patches as well).
For now I am relatively satisfied as our kids have taken an interest in learning the different flags (and showing off where they have been). However, the backpacks are getting full now after only 5 years and I am wondering if there is another idea that would work as well. So I would like to hear what methods other FTers have come up with. Any thoughts before I follow the same route my parents once did and switch to a hoodie?