Oh man, that makes me so nostalgic. My grandpa has a balance board just like the one in the second link in his house. It's been used by his 10 children, 30-ish grandchildren, dozen great-grandchildren and 1 great-great grandchild and is still in good shape. I have such fond memories of having balance board tournaments with my siblings and cousins - it is such a great toy!
10/25/10 at 11:20pm