Business & farm

I started a quilting business in 2021.  I have one sale so far for $150.  I purchased equipment, sewing supplies, fabric, etc.  My question has to do with what items I can deduct as expenses.  I have receipts for many of the items I purchased so I know those can be listed as expenses.  What about the items I don't have receipts for like fabric and embroidery sewing machine that I purchased at an estate sale/yard sale.  I paid $3000 for the machine and fabric but I don't have a receipt for it.  Can I still claim these items?

 

Thanks, Linda