There are many creative ways to upcycle old t-shirts instead of throwing them away. Here are some ideas from the search results:

1. Donate them: You can donate your old t-shirts to local thrift stores, charities, or organizations that accept clothing donations.
2. Recycle them: Some fast-fashion brands have in-store recycling programs that accept textiles, including old t-shirts.
3. Use them as rags: Cut up old t-shirts and use them as cleaning rags.
4. Make a rug: Cut t-shirts into strips and braid them together to make a colorful rug.
5. Create produce bags: Cut off the sleeves of t-shirts and sew the bottom closed to make reusable produce bags.
6. Make a reusable bag: Cut off the top of a t-shirt and sew the bottom closed to make a reusable bag.
7. Use them as paint smocks for kids: Let kids wear old t-shirts as paint smocks to protect their clothes.
8. Make capes for kids: Cut t-shirts into capes for kids.
9. Create stylish headbands: Cut t-shirts into strips and braid them together to make headbands.
10. Make t-shirt yarn: Cut t-shirts into strips and use them to make yarn for crochet or knitting projects.
11. Create a zero-sew tote bag: Cut off the sleeves and neckline of a t-shirt and tie the bottom closed to make a tote bag without sewing.
12. Make a pillowcase: Turn old t-shirts into pillowcases.
13. Use them as packing material: Old t-shirts can be used as packing material when moving.
14. Make a canvas: Stretch an old t-shirt over a canvas frame to create a unique piece of art.
15. Create a quilt: Cut up old t-shirts and sew them together to make a quilt.
16. Make a stuffed animal: Use old t-shirts to make stuffed animals or toys.

These are just a few ideas to get started. With a little creativity, there are endless possibilities for upcycling old t-shirts.