Pottery class, there is a really nice lady that teaches beginner and advanced pottery at our church. It is a lot of fun and fun to make gifts for other people. I know this isn't something I do at home, but thought I would mention it anyway.. However, you could if you really wanted to do this and get all the supplies, kiln,etc... and have the equipment at home.
I do scrapbooking at home and I go to my friends house for crops. Love the end result with beautiful scrapbooks with my pictures protected and preserved for my child to pass on to his family someday. You can scrapbook trips that you take, your children, any pets if you have any, family-Grandparents/Great Grandparents or family in general. You could do each year of your child and major things the child did that year-school,etc... This is something that you will treasure for many years and your family will treasure also.
I have a stamp collection that was my hobby when I was younger, however I still have it, just not actively doing this hobby anymore. I have a dollhouse and miniatures that was my hobby of collecting the miniatures.
Paper Piecing- which is a part of scrapbooking. I belong to a Paper Piecing group- every 3 months we do a paper piece for our scrapbooks. One time I did a bunny for Easter, another time I did a poinsetta for Christmas, another time I made a Christmas Tree. You make it from scratch or you can get a Cricut machine and get the punches to make whatever you want to.
I had friend whose hobby was making soap and candles. I went to her house and made some Valentine soap and candles in a teacup. This was fun, however you do have to buy the candle machine and the soap making equipment and is time consuming/messy at times.
I've made cards for Easter before and birthday before and that was fun. I enjoy stamping and stenciling also.
Do something that you enjoy doing. Try something out and see how you like it. It should be fun and not so overwhelming that you can't enjoy having fun.