I am a big believer that just because you have kids you don’t have to compensate style or beautiful things. In fact because you have children you have an extra obligation to surround them with beautiful things so you can teach them to appreciate it. These puzzles fit into the category of beautiful handcrafted toys your kids will play with. These blocks are 3/4″ thick and are colored with non-toxic water based dyes. You can find them here and here.