Magnets, what fun they are to play with. I have a magnetic game in my living room. It has a magnetic base and is covered with metal diamond shaped pieces. It’s fun to see how high you can pile them or what designs you can make. 

I also have a tool I can use to pick up pins and needles or stray paper clips. It has a magnet on the end, and it extends so I can reach things that have gotten away in corners or have fallen under furniture. Another magnetic tool I’ve used was helpful in picking up the nails in our yard left behind when a new roof was put on our house.