✂️ 3 Level Safe Lock DIY from Cardboard Do you like raisins? Slime Sam is full of surprises. But sometimes he doesn't even know how to make his awesome ideas work. Luckily, his friend Sue is always willing to help him. This time Sam has the need to hide something for two weeks, but to make sure he doesn't open the storage too early, he needs a locked container. Sue suggests making a cardboard safe with two types of protection - combinations locks and key locks. Sue will know the code combination